English verb conjugation COULD COMPLETE

Regular verb: complete - completed - completed

Affirmation

Simple form

I could complete
you could complete
he could complete
we could complete
you could complete
they could complete

V-ing form

I could be completing
you could be completing
he could be completing
we could be completing
you could be completing
they could be completing

Perfect

I could have completed
you could have completed
he could have completed
we could have completed
you could have completed
they could have completed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I complete?
could you complete?
could he complete?
could we complete?
could you complete?
could they complete?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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