English verb conjugation COULD PREWARN

Regular verb: prewarn - prewarned - prewarned

Affirmation

Simple form

I could prewarn
you could prewarn
she could prewarn
we could prewarn
you could prewarn
they could prewarn

V-ing form

I could be prewarning
you could be prewarning
she could be prewarning
we could be prewarning
you could be prewarning
they could be prewarning

Perfect

I could have prewarned
you could have prewarned
she 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
she could have been prewarning
we could have been prewarning
you could have been prewarning
they could have been prewarning

Negation

Simple form

I couldn't prewarn
you couldn't prewarn
she couldn't prewarn
we couldn't prewarn
you couldn't prewarn
they couldn't prewarn

V-ing form

I couldn't be prewarning
you couldn't be prewarning
she couldn't be prewarning
we couldn't be prewarning
you couldn't be prewarning
they couldn't be prewarning

Perfect

I couldn't have prewarned
you couldn't have prewarned
she couldn't have prewarned
we couldn't have prewarned
you couldn't have prewarned
they couldn't have prewarned

V-ing perfect

I couldn't have been prewarning
you couldn't have been prewarning
she couldn't have been prewarning
we couldn't have been prewarning
you couldn't have been prewarning
they couldn't have been prewarning

Interrogative form

Simple form

could I prewarn?
could you prewarn?
could she prewarn?
could we prewarn?
could you prewarn?
could they prewarn?

V-ing form

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

Perfect

could I have prewarned?
could you have prewarned?
could she 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 she have been prewarning?
could we have been prewarning?
could you have been prewarning?
could they have been prewarning?

Interro-negative form

Simple form

couldn't I prewarn?
couldn't you prewarn?
couldn't she prewarn?
couldn't we prewarn?
couldn't you prewarn?
couldn't they prewarn?

V-ing form

couldn't I be prewarning?
couldn't you be prewarning?
couldn't she be prewarning?
couldn't we be prewarning?
couldn't you be prewarning?
couldn't they be prewarning?

Perfect

couldn't I have prewarned?
couldn't you have prewarned?
couldn't she have prewarned?
couldn't we have prewarned?
couldn't you have prewarned?
couldn't they have prewarned?

V-ing perfect

couldn't I have been prewarning?
couldn't you have been prewarning?
couldn't she have been prewarning?
couldn't we have been prewarning?
couldn't you have been prewarning?
couldn't they have been prewarning?

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