English verb conjugation COULD SUBSERVE

Regular verb: subserve - subserved - subserved

Affirmation

Simple form

I could subserve
you could subserve
she could subserve
we could subserve
you could subserve
they could subserve

V-ing form

I could be subserving
you could be subserving
she could be subserving
we could be subserving
you could be subserving
they could be subserving

Perfect

I could have subserved
you could have subserved
she could have subserved
we could have subserved
you could have subserved
they could have subserved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I subserve?
could you subserve?
could she subserve?
could we subserve?
could you subserve?
could they subserve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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