English verb conjugation COULD GRATULATE

Regular verb: gratulate - gratulated - gratulated

Affirmation

Simple form

I could gratulate
you could gratulate
he could gratulate
we could gratulate
you could gratulate
they could gratulate

V-ing form

I could be gratulating
you could be gratulating
he could be gratulating
we could be gratulating
you could be gratulating
they could be gratulating

Perfect

I could have gratulated
you could have gratulated
he could have gratulated
we could have gratulated
you could have gratulated
they could have gratulated

V-ing perfect

I could have been gratulating
you could have been gratulating
he could have been gratulating
we could have been gratulating
you could have been gratulating
they could have been gratulating

Negation

Simple form

I could not gratulate
you could not gratulate
he could not gratulate
we could not gratulate
you could not gratulate
they could not gratulate

V-ing form

I could not be gratulating
you could not be gratulating
he could not be gratulating
we could not be gratulating
you could not be gratulating
they could not be gratulating

Perfect

I could not have gratulated
you could not have gratulated
he could not have gratulated
we could not have gratulated
you could not have gratulated
they could not have gratulated

V-ing perfect

I could not have been gratulating
you could not have been gratulating
he could not have been gratulating
we could not have been gratulating
you could not have been gratulating
they could not have been gratulating

Interrogative form

Simple form

could I gratulate?
could you gratulate?
could he gratulate?
could we gratulate?
could you gratulate?
could they gratulate?

V-ing form

could I be gratulating?
could you be gratulating?
could he be gratulating?
could we be gratulating?
could you be gratulating?
could they be gratulating?

Perfect

could I have gratulated?
could you have gratulated?
could he have gratulated?
could we have gratulated?
could you have gratulated?
could they have gratulated?

V-ing perfect

could I have been gratulating?
could you have been gratulating?
could he have been gratulating?
could we have been gratulating?
could you have been gratulating?
could they have been gratulating?

Interro-negative form

Simple form

could I not gratulate?
could you not gratulate?
could he not gratulate?
could we not gratulate?
could you not gratulate?
could they not gratulate?

V-ing form

could I not be gratulating?
could you not be gratulating?
could he not be gratulating?
could we not be gratulating?
could you not be gratulating?
could they not be gratulating?

Perfect

could I not have gratulated?
could you not have gratulated?
could he not have gratulated?
could we not have gratulated?
could you not have gratulated?
could they not have gratulated?

V-ing perfect

could I not have been gratulating?
could you not have been gratulating?
could he not have been gratulating?
could we not have been gratulating?
could you not have been gratulating?
could they not have been gratulating?

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