English verb conjugation COULD LUFF

Regular verb: luff - luffed - luffed

Affirmation

Simple form

I could luff
you could luff
he could luff
we could luff
you could luff
they could luff

V-ing form

I could be luffing
you could be luffing
he could be luffing
we could be luffing
you could be luffing
they could be luffing

Perfect

I could have luffed
you could have luffed
he could have luffed
we could have luffed
you could have luffed
they could have luffed

V-ing perfect

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

Negation

Simple form

I could not luff
you could not luff
he could not luff
we could not luff
you could not luff
they could not luff

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I luff?
could you luff?
could he luff?
could we luff?
could you luff?
could they luff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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