Free conjugation exercises for English language learners

certify

Regular

Change speaker

You're listening to Joanna
She has an American accent and expects you to use American spelling.

Simple

Continuous

Perfect

Perfect continuous

Past

I certified
you certified
he/she/it certified
we certified
you certified
they certified

Present

I certify
you certify
he/she/it certifies
we certify
you certify
they certify

Future

I will certify
you will certify
he/she/it will certify
we will certify
you will certify
they will certify

Past

I was certifying
you were certifying
he/she/it was certifying
we were certifying
you were certifying
they were certifying

Present

I am certifying
you are certifying
he/she/it is certifying
we are certifying
you are certifying
they are certifying

Future

I will be certifying
you will be certifying
he/she/it will be certifying
we will be certifying
you will be certifying
they will be certifying

Past

I had certified
you had certified
he/she/it had certified
we had certified
you had certified
they had certified

Present

I have certified
you have certified
he/she/it has certified
we have certified
you have certified
they have certified

Future

I will have certified
you will have certified
he/she/it will have certified
we will have certified
you will have certified
they will have certified

Past

I had been certifying
you had been certifying
he/she/it had been certifying
we had been certifying
you had been certifying
they had been certifying

Present

I have been certifying
you have been certifying
he/she/it has been certifying
we have been certifying
you have been certifying
they have been certifying

Future

I will have been certifying
you will have been certifying
he/she/it will have been certifying
we will have been certifying
you will have been certifying
they will have been certifying

{"verb":"certify","type":"Regular","conjugation":{"Simple":{"Past":["I certified","you certified","he\/she\/it certified","we certified","you certified","they certified"],"Present":["I certify","you certify","he\/she\/it certifies","we certify","you certify","they certify"],"Future":["I will certify","you will certify","he\/she\/it will certify","we will certify","you will certify","they will certify"]},"Continuous":{"Past":["I was certifying","you were certifying","he\/she\/it was certifying","we were certifying","you were certifying","they were certifying"],"Present":["I am certifying","you are certifying","he\/she\/it is certifying","we are certifying","you are certifying","they are certifying"],"Future":["I will be certifying","you will be certifying","he\/she\/it will be certifying","we will be certifying","you will be certifying","they will be certifying"]},"Perfect":{"Past":["I had certified","you had certified","he\/she\/it had certified","we had certified","you had certified","they had certified"],"Present":["I have certified","you have certified","he\/she\/it has certified","we have certified","you have certified","they have certified"],"Future":["I will have certified","you will have certified","he\/she\/it will have certified","we will have certified","you will have certified","they will have certified"]},"Perfect continuous":{"Past":["I had been certifying","you had been certifying","he\/she\/it had been certifying","we had been certifying","you had been certifying","they had been certifying"],"Present":["I have been certifying","you have been certifying","he\/she\/it has been certifying","we have been certifying","you have been certifying","they have been certifying"],"Future":["I will have been certifying","you will have been certifying","he\/she\/it will have been certifying","we will have been certifying","you will have been certifying","they will have been certifying"]}}}