English verb conjugation COULD PREWARN

Regular verb: prewarn - prewarned - prewarned

Affirmation

Simple form

I could prewarn
you could prewarn
he could prewarn
we could prewarn
you could prewarn
they could prewarn

V-ing form

I could be prewarning
you could be prewarning
he could be prewarning
we could be prewarning
you could be prewarning
they could be prewarning

Perfect

I could have prewarned
you could have prewarned
he could have prewarned
we could have prewarned
you could have prewarned
they could have prewarned

V-ing perfect

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

Negation

Simple form

I could not prewarn
you could not prewarn
he could not prewarn
we could not prewarn
you could not prewarn
they could not prewarn

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I prewarn?
could you prewarn?
could he prewarn?
could we prewarn?
could you prewarn?
could they prewarn?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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