English verb conjugation COULD ATTAIN

Regular verb: attain - attained - attained

Affirmation

Simple form

I could attain
you could attain
he could attain
we could attain
you could attain
they could attain

V-ing form

I could be attaining
you could be attaining
he could be attaining
we could be attaining
you could be attaining
they could be attaining

Perfect

I could have attained
you could have attained
he could have attained
we could have attained
you could have attained
they could have attained

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I attain?
could you attain?
could he attain?
could we attain?
could you attain?
could they attain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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