English verb conjugation COULD FOREWARN

Regular verb: forewarn - forewarned - forewarned

Affirmation

Simple form

I could forewarn
you could forewarn
she could forewarn
we could forewarn
you could forewarn
they could forewarn

V-ing form

I could be forewarning
you could be forewarning
she could be forewarning
we could be forewarning
you could be forewarning
they could be forewarning

Perfect

I could have forewarned
you could have forewarned
she could have forewarned
we could have forewarned
you could have forewarned
they could have forewarned

V-ing perfect

I could have been forewarning
you could have been forewarning
she could have been forewarning
we could have been forewarning
you could have been forewarning
they could have been forewarning

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I forewarn?
could you forewarn?
could she forewarn?
could we forewarn?
could you forewarn?
could they forewarn?

V-ing form

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

Perfect

could I have forewarned?
could you have forewarned?
could she have forewarned?
could we have forewarned?
could you have forewarned?
could they have forewarned?

V-ing perfect

could I have been forewarning?
could you have been forewarning?
could she have been forewarning?
could we have been forewarning?
could you have been forewarning?
could they have been forewarning?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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