English verb conjugation COULD STRIVE

Irregular verb: strive - strived - striven

Affirmation

Simple form

I could strive
you could strive
he could strive
we could strive
you could strive
they could strive

V-ing form

I could be striving
you could be striving
he could be striving
we could be striving
you could be striving
they could be striving

Perfect

I could have striven
you could have striven
he could have striven
we could have striven
you could have striven
they could have striven

V-ing perfect

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

Negation

Simple form

I could not strive
you could not strive
he could not strive
we could not strive
you could not strive
they could not strive

V-ing form

I could not be striving
you could not be striving
he could not be striving
we could not be striving
you could not be striving
they could not be striving

Perfect

I could not have striven
you could not have striven
he could not have striven
we could not have striven
you could not have striven
they could not have striven

V-ing perfect

I could not have been striving
you could not have been striving
he could not have been striving
we could not have been striving
you could not have been striving
they could not have been striving

Interrogative form

Simple form

could I strive?
could you strive?
could he strive?
could we strive?
could you strive?
could they strive?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not strive?
could you not strive?
could he not strive?
could we not strive?
could you not strive?
could they not strive?

V-ing form

could I not be striving?
could you not be striving?
could he not be striving?
could we not be striving?
could you not be striving?
could they not be striving?

Perfect

could I not have striven?
could you not have striven?
could he not have striven?
could we not have striven?
could you not have striven?
could they not have striven?

V-ing perfect

could I not have been striving?
could you not have been striving?
could he not have been striving?
could we not have been striving?
could you not have been striving?
could they not have been striving?

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