English verb conjugation COULD DECAFFEINATE

Regular verb: decaffeinate - decaffeinated - decaffeinated

Affirmation

Simple form

I could decaffeinate
you could decaffeinate
he could decaffeinate
we could decaffeinate
you could decaffeinate
they could decaffeinate

V-ing form

I could be decaffeinating
you could be decaffeinating
he could be decaffeinating
we could be decaffeinating
you could be decaffeinating
they could be decaffeinating

Perfect

I could have decaffeinated
you could have decaffeinated
he could have decaffeinated
we could have decaffeinated
you could have decaffeinated
they could have decaffeinated

V-ing perfect

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

Negation

Simple form

I couldn't decaffeinate
you couldn't decaffeinate
he couldn't decaffeinate
we couldn't decaffeinate
you couldn't decaffeinate
they couldn't decaffeinate

V-ing form

I couldn't be decaffeinating
you couldn't be decaffeinating
he couldn't be decaffeinating
we couldn't be decaffeinating
you couldn't be decaffeinating
they couldn't be decaffeinating

Perfect

I couldn't have decaffeinated
you couldn't have decaffeinated
he couldn't have decaffeinated
we couldn't have decaffeinated
you couldn't have decaffeinated
they couldn't have decaffeinated

V-ing perfect

I couldn't have been decaffeinating
you couldn't have been decaffeinating
he couldn't have been decaffeinating
we couldn't have been decaffeinating
you couldn't have been decaffeinating
they couldn't have been decaffeinating

Interrogative form

Simple form

could I decaffeinate?
could you decaffeinate?
could he decaffeinate?
could we decaffeinate?
could you decaffeinate?
could they decaffeinate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I decaffeinate?
couldn't you decaffeinate?
couldn't he decaffeinate?
couldn't we decaffeinate?
couldn't you decaffeinate?
couldn't they decaffeinate?

V-ing form

couldn't I be decaffeinating?
couldn't you be decaffeinating?
couldn't he be decaffeinating?
couldn't we be decaffeinating?
couldn't you be decaffeinating?
couldn't they be decaffeinating?

Perfect

couldn't I have decaffeinated?
couldn't you have decaffeinated?
couldn't he have decaffeinated?
couldn't we have decaffeinated?
couldn't you have decaffeinated?
couldn't they have decaffeinated?

V-ing perfect

couldn't I have been decaffeinating?
couldn't you have been decaffeinating?
couldn't he have been decaffeinating?
couldn't we have been decaffeinating?
couldn't you have been decaffeinating?
couldn't they have been decaffeinating?

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