English verb conjugation COULD SERVE

Regular verb: serve - served - served

Affirmation

Simple form

I could serve
you could serve
she could serve
we could serve
you could serve
they could serve

V-ing form

I could be serving
you could be serving
she could be serving
we could be serving
you could be serving
they could be serving

Perfect

I could have served
you could have served
she could have served
we could have served
you could have served
they could have served

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I serve?
could you serve?
could she serve?
could we serve?
could you serve?
could they serve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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