English verb conjugation COULD DECREASE

Regular verb: decrease - decreased - decreased

Affirmation

Simple form

I could decrease
you could decrease
she could decrease
we could decrease
you could decrease
they could decrease

V-ing form

I could be decreasing
you could be decreasing
she could be decreasing
we could be decreasing
you could be decreasing
they could be decreasing

Perfect

I could have decreased
you could have decreased
she could have decreased
we could have decreased
you could have decreased
they could have decreased

V-ing perfect

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

Negation

Simple form

I could not decrease
you could not decrease
she could not decrease
we could not decrease
you could not decrease
they could not decrease

V-ing form

I could not be decreasing
you could not be decreasing
she could not be decreasing
we could not be decreasing
you could not be decreasing
they could not be decreasing

Perfect

I could not have decreased
you could not have decreased
she could not have decreased
we could not have decreased
you could not have decreased
they could not have decreased

V-ing perfect

I could not have been decreasing
you could not have been decreasing
she could not have been decreasing
we could not have been decreasing
you could not have been decreasing
they could not have been decreasing

Interrogative form

Simple form

could I decrease?
could you decrease?
could she decrease?
could we decrease?
could you decrease?
could they decrease?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not decrease?
could you not decrease?
could she not decrease?
could we not decrease?
could you not decrease?
could they not decrease?

V-ing form

could I not be decreasing?
could you not be decreasing?
could she not be decreasing?
could we not be decreasing?
could you not be decreasing?
could they not be decreasing?

Perfect

could I not have decreased?
could you not have decreased?
could she not have decreased?
could we not have decreased?
could you not have decreased?
could they not have decreased?

V-ing perfect

could I not have been decreasing?
could you not have been decreasing?
could she not have been decreasing?
could we not have been decreasing?
could you not have been decreasing?
could they not have been decreasing?

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