English verb conjugation COULD ENGRAFT

Regular verb: engraft - engrafted - engrafted

Affirmation

Simple form

I could engraft
you could engraft
he could engraft
we could engraft
you could engraft
they could engraft

V-ing form

I could be engrafting
you could be engrafting
he could be engrafting
we could be engrafting
you could be engrafting
they could be engrafting

Perfect

I could have engrafted
you could have engrafted
he could have engrafted
we could have engrafted
you could have engrafted
they could have engrafted

V-ing perfect

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

Negation

Simple form

I could not engraft
you could not engraft
he could not engraft
we could not engraft
you could not engraft
they could not engraft

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I engraft?
could you engraft?
could he engraft?
could we engraft?
could you engraft?
could they engraft?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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