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Conjugation of the verb "to certify"

Semi-regular verb (spelling: -y → -ies)

to

certify

Indicative

Present

Affirmative
  1. Icertify
  2. youcertify
  3. he, she, itcertifies
  4. wecertify
  5. youcertify
  6. theycertify
Negative
  1. Ido not certify
  2. youdo not certify
  3. he, she, itdoes not certify
  4. wedo not certify
  5. youdo not certify
  6. theydo not certify
Interrogative
  1. DoI certify?
  2. Doyou certify?
  3. Doeshe, she, it certify?
  4. Dowe certify?
  5. Doyou certify?
  6. Dothey certify?
Passive
  1. Iam certified
  2. youare certified
  3. he, she, itis certified
  4. weare certified
  5. youare certified
  6. theyare certified

Simple past

Affirmative
  1. Icertified
  2. youcertified
  3. he, she, itcertified
  4. wecertified
  5. youcertified
  6. theycertified
Negative
  1. Idid not certify
  2. youdid not certify
  3. he, she, itdid not certify
  4. wedid not certify
  5. youdid not certify
  6. theydid not certify
Interrogative
  1. DidI certify?
  2. Didyou certify?
  3. Didhe, she, it certify?
  4. Didwe certify?
  5. Didyou certify?
  6. Didthey certify?
Passive
  1. Iwas certified
  2. youwere certified
  3. he, she, itwas certified
  4. wewere certified
  5. youwere certified
  6. theywere certified

Future

Affirmative
  1. Iwill certify
  2. youwill certify
  3. he, she, itwill certify
  4. wewill certify
  5. youwill certify
  6. theywill certify
Negative
  1. Iwill not certify
  2. youwill not certify
  3. he, she, itwill not certify
  4. wewill not certify
  5. youwill not certify
  6. theywill not certify
Interrogative
  1. WillI certify?
  2. Willyou certify?
  3. Willhe, she, it certify?
  4. Willwe certify?
  5. Willyou certify?
  6. Willthey certify?
Passive
  1. Iwill be certified
  2. youwill be certified
  3. he, she, itwill be certified
  4. wewill be certified
  5. youwill be certified
  6. theywill be certified

Present perfect

Affirmative
  1. Ihave certified
  2. youhave certified
  3. he, she, ithas certified
  4. wehave certified
  5. youhave certified
  6. theyhave certified
Negative
  1. Ihave not certified
  2. youhave not certified
  3. he, she, ithas not certified
  4. wehave not certified
  5. youhave not certified
  6. theyhave not certified
Interrogative
  1. HaveI certified?
  2. Haveyou certified?
  3. Hashe, she, it certified?
  4. Havewe certified?
  5. Haveyou certified?
  6. Havethey certified?
Passive
  1. Ihave been certified
  2. youhave been certified
  3. he, she, ithas been certified
  4. wehave been certified
  5. youhave been certified
  6. theyhave been certified

Past perfect

Affirmative
  1. Ihad certified
  2. youhad certified
  3. he, she, ithad certified
  4. wehad certified
  5. youhad certified
  6. theyhad certified
Negative
  1. Ihad not certified
  2. youhad not certified
  3. he, she, ithad not certified
  4. wehad not certified
  5. youhad not certified
  6. theyhad not certified
Interrogative
  1. HadI certified?
  2. Hadyou certified?
  3. Hadhe, she, it certified?
  4. Hadwe certified?
  5. Hadyou certified?
  6. Hadthey certified?
Passive
  1. Ihad been certified
  2. youhad been certified
  3. he, she, ithad been certified
  4. wehad been certified
  5. youhad been certified
  6. theyhad been certified

Future perfect

Affirmative
  1. Iwill have certified
  2. youwill have certified
  3. he, she, itwill have certified
  4. wewill have certified
  5. youwill have certified
  6. theywill have certified
Negative
  1. Iwill not have certified
  2. youwill not have certified
  3. he, she, itwill not have certified
  4. wewill not have certified
  5. youwill not have certified
  6. theywill not have certified
Interrogative
  1. WillI have certified?
  2. Willyou have certified?
  3. Willhe, she, it have certified?
  4. Willwe have certified?
  5. Willyou have certified?
  6. Willthey have certified?
Passive
  1. Iwill have been certified
  2. youwill have been certified
  3. he, she, itwill have been certified
  4. wewill have been certified
  5. youwill have been certified
  6. theywill have been certified

Present continuous

Affirmative
  1. Iam certifying
  2. youare certifying
  3. he, she, itis certifying
  4. weare certifying
  5. youare certifying
  6. theyare certifying
Negative
  1. Iam not certifying
  2. youare not certifying
  3. he, she, itis not certifying
  4. weare not certifying
  5. youare not certifying
  6. theyare not certifying
Interrogative
  1. AmI certifying?
  2. Areyou certifying?
  3. Ishe, she, it certifying?
  4. Arewe certifying?
  5. Areyou certifying?
  6. Arethey certifying?

Past continuous

Affirmative
  1. Iwas certifying
  2. youwere certifying
  3. he, she, itwas certifying
  4. wewere certifying
  5. youwere certifying
  6. theywere certifying
Negative
  1. Iwas not certifying
  2. youwere not certifying
  3. he, she, itwas not certifying
  4. wewere not certifying
  5. youwere not certifying
  6. theywere not certifying
Interrogative
  1. WasI certifying?
  2. Wereyou certifying?
  3. Washe, she, it certifying?
  4. Werewe certifying?
  5. Wereyou certifying?
  6. Werethey certifying?

Future continuous

Affirmative
  1. Iwill be certifying
  2. youwill be certifying
  3. he, she, itwill be certifying
  4. wewill be certifying
  5. youwill be certifying
  6. theywill be certifying
Negative
  1. Iwill not be certifying
  2. youwill not be certifying
  3. he, she, itwill not be certifying
  4. wewill not be certifying
  5. youwill not be certifying
  6. theywill not be certifying
Interrogative
  1. WillI be certifying?
  2. Willyou be certifying?
  3. Willhe, she, it be certifying?
  4. Willwe be certifying?
  5. Willyou be certifying?
  6. Willthey be certifying?

Future perfect continuous

Affirmative
  1. Iwill have been certifying
  2. youwill have been certifying
  3. he, she, itwill have been certifying
  4. wewill have been certifying
  5. youwill have been certifying
  6. theywill have been certifying
Negative
  1. Iwill not have been certifying
  2. youwill not have been certifying
  3. he, she, itwill not have been certifying
  4. wewill not have been certifying
  5. youwill not have been certifying
  6. theywill not have been certifying
Interrogative
  1. WillI have been certifying?
  2. Willyou have been certifying?
  3. Willhe, she, it have been certifying?
  4. Willwe have been certifying?
  5. Willyou have been certifying?
  6. Willthey have been certifying?

Present perfect continuous

Affirmative
  1. Ihave been certifying
  2. youhave been certifying
  3. he, she, ithas been certifying
  4. wehave been certifying
  5. youhave been certifying
  6. theyhave been certifying
Negative
  1. Ihave not been certifying
  2. youhave not been certifying
  3. he, she, ithas not been certifying
  4. wehave not been certifying
  5. youhave not been certifying
  6. theyhave not been certifying
Interrogative
  1. HaveI been certifying?
  2. Haveyou been certifying?
  3. Hashe, she, it been certifying?
  4. Havewe been certifying?
  5. Haveyou been certifying?
  6. Havethey been certifying?

Past perfect continuous

Affirmative
  1. Ihad been certifying
  2. youhad been certifying
  3. he, she, ithad been certifying
  4. wehad been certifying
  5. youhad been certifying
  6. theyhad been certifying
Negative
  1. Ihad not been certifying
  2. youhad not been certifying
  3. he, she, ithad not been certifying
  4. wehad not been certifying
  5. youhad not been certifying
  6. theyhad not been certifying
Interrogative
  1. HadI been certifying?
  2. Hadyou been certifying?
  3. Hadhe, she, it been certifying?
  4. Hadwe been certifying?
  5. Hadyou been certifying?
  6. Hadthey been certifying?

Present emphatic

Affirmative
  1. Ido certify
  2. youdo certify
  3. he, she, itdoes certify
  4. wedo certify
  5. youdo certify
  6. theydo certify

Past emphatic

Affirmative
  1. Idid certify
  2. youdid certify
  3. he, she, itdid certify
  4. wedid certify
  5. youdid certify
  6. theydid certify

Conditional

Present

Affirmative
  1. Iwould certify
  2. youwould certify
  3. he, she, itwould certify
  4. wewould certify
  5. youwould certify
  6. theywould certify
Negative
  1. Iwould not certify
  2. youwould not certify
  3. he, she, itwould not certify
  4. wewould not certify
  5. youwould not certify
  6. theywould not certify
Interrogative
  1. WouldI certify?
  2. Wouldyou certify?
  3. Wouldhe, she, it certify?
  4. Wouldwe certify?
  5. Wouldyou certify?
  6. Wouldthey certify?
Passive
  1. Iwould be certified
  2. youwould be certified
  3. he, she, itwould be certified
  4. wewould be certified
  5. youwould be certified
  6. theywould be certified

Perfect

Affirmative
  1. Iwould have certified
  2. youwould have certified
  3. he, she, itwould have certified
  4. wewould have certified
  5. youwould have certified
  6. theywould have certified
Negative
  1. Iwould not have certified
  2. youwould not have certified
  3. he, she, itwould not have certified
  4. wewould not have certified
  5. youwould not have certified
  6. theywould not have certified
Interrogative
  1. WouldI have certified?
  2. Wouldyou have certified?
  3. Wouldhe, she, it have certified?
  4. Wouldwe have certified?
  5. Wouldyou have certified?
  6. Wouldthey have certified?
Passive
  1. Iwould have been certified
  2. youwould have been certified
  3. he, she, itwould have been certified
  4. wewould have been certified
  5. youwould have been certified
  6. theywould have been certified

Present continuous

Affirmative
  1. Iwould be certifying
  2. youwould be certifying
  3. he, she, itwould be certifying
  4. wewould be certifying
  5. youwould be certifying
  6. theywould be certifying

Perfect continuous

Affirmative
  1. Iwould have been certifying
  2. youwould have been certifying
  3. he, she, itwould have been certifying
  4. wewould have been certifying
  5. youwould have been certifying
  6. theywould have been certifying

Imperative

Present

Affirmative
  1. I—
  2. youcertify!
  3. he, she, it—
  4. welet's certify!
  5. youcertify!
  6. they—
Negative
  1. I—
  2. youdon't certify!
  3. he, she, it—
  4. welet's not certify!
  5. youdon't certify!
  6. they—

Subjunctive

Present

Affirmative
  1. Icertify
  2. youcertify
  3. he, she, itcertify
  4. wecertify
  5. youcertify
  6. theycertify

Past

Affirmative
  1. Icertified
  2. youcertified
  3. he, she, itcertified
  4. wecertified
  5. youcertified
  6. theycertified

Past perfect

Affirmative
  1. Ihad certified
  2. youhad certified
  3. he, she, ithad certified
  4. wehad certified
  5. youhad certified
  6. theyhad certified

Future

Affirmative
  1. Ishould certify
  2. youshould certify
  3. he, she, itshould certify
  4. weshould certify
  5. youshould certify
  6. theyshould certify

Infinitive

Present

Affirmative
  1. (to) certify

Perfect

Affirmative
  1. (to) have certified

Participle

Present

Affirmative
  1. certifying

Past

Affirmative
  1. certified