English verb conjugation COULD SIGNAL

Regular verb: signal - signalled - signalled

Affirmation

Simple form

I could signal
you could signal
he could signal
we could signal
you could signal
they could signal

V-ing form

I could be signalling
you could be signalling
he could be signalling
we could be signalling
you could be signalling
they could be signalling

Perfect

I could have signalled
you could have signalled
he could have signalled
we could have signalled
you could have signalled
they could have signalled

V-ing perfect

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

Negation

Simple form

I could not signal
you could not signal
he could not signal
we could not signal
you could not signal
they could not signal

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I signal?
could you signal?
could he signal?
could we signal?
could you signal?
could they signal?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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