English verb conjugation COULD ALTERNATE

Regular verb: alternate - alternated - alternated

Affirmation

Simple form

I could alternate
you could alternate
he could alternate
we could alternate
you could alternate
they could alternate

V-ing form

I could be alternating
you could be alternating
he could be alternating
we could be alternating
you could be alternating
they could be alternating

Perfect

I could have alternated
you could have alternated
he could have alternated
we could have alternated
you could have alternated
they could have alternated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I alternate?
could you alternate?
could he alternate?
could we alternate?
could you alternate?
could they alternate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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