English verb conjugation COULD QUACK

Regular verb: quack - quacked - quacked

Affirmation

Simple form

I could quack
you could quack
he could quack
we could quack
you could quack
they could quack

V-ing form

I could be quacking
you could be quacking
he could be quacking
we could be quacking
you could be quacking
they could be quacking

Perfect

I could have quacked
you could have quacked
he could have quacked
we could have quacked
you could have quacked
they could have quacked

V-ing perfect

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

Negation

Simple form

I couldn't quack
you couldn't quack
he couldn't quack
we couldn't quack
you couldn't quack
they couldn't quack

V-ing form

I couldn't be quacking
you couldn't be quacking
he couldn't be quacking
we couldn't be quacking
you couldn't be quacking
they couldn't be quacking

Perfect

I couldn't have quacked
you couldn't have quacked
he couldn't have quacked
we couldn't have quacked
you couldn't have quacked
they couldn't have quacked

V-ing perfect

I couldn't have been quacking
you couldn't have been quacking
he couldn't have been quacking
we couldn't have been quacking
you couldn't have been quacking
they couldn't have been quacking

Interrogative form

Simple form

could I quack?
could you quack?
could he quack?
could we quack?
could you quack?
could they quack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I quack?
couldn't you quack?
couldn't he quack?
couldn't we quack?
couldn't you quack?
couldn't they quack?

V-ing form

couldn't I be quacking?
couldn't you be quacking?
couldn't he be quacking?
couldn't we be quacking?
couldn't you be quacking?
couldn't they be quacking?

Perfect

couldn't I have quacked?
couldn't you have quacked?
couldn't he have quacked?
couldn't we have quacked?
couldn't you have quacked?
couldn't they have quacked?

V-ing perfect

couldn't I have been quacking?
couldn't you have been quacking?
couldn't he have been quacking?
couldn't we have been quacking?
couldn't you have been quacking?
couldn't they have been quacking?

Page top