English verb conjugation COULD CROAK

Regular verb: croak - croaked - croaked

Affirmation

Simple form

I could croak
you could croak
he could croak
we could croak
you could croak
they could croak

V-ing form

I could be croaking
you could be croaking
he could be croaking
we could be croaking
you could be croaking
they could be croaking

Perfect

I could have croaked
you could have croaked
he could have croaked
we could have croaked
you could have croaked
they could have croaked

V-ing perfect

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

Negation

Simple form

I could not croak
you could not croak
he could not croak
we could not croak
you could not croak
they could not croak

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I croak?
could you croak?
could he croak?
could we croak?
could you croak?
could they croak?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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