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 couldn't strive
you couldn't strive
he couldn't strive
we couldn't strive
you couldn't strive
they couldn't strive

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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