English verb conjugation
COULD STRIVE

Irregular verb: strive - strived - striven

Affirmation

Simple form	V-ing form
I could strive you could strive she could strive we could strive you could strive they could strive	I could be striving you could be striving she could be striving we could be striving you could be striving they could be striving
Perfect	V-ing perfect
I could have striven you could have striven she could have striven we could have striven you could have striven they could have striven	I could have been striving you could have been striving she could have been striving we could have been striving you could have been striving they could have been striving

Negation

Simple form	V-ing form
I could not strive you could not strive she could not strive we could not strive you could not strive they could not strive	I could not be striving you could not be striving she could not be striving we could not be striving you could not be striving they could not be striving
Perfect	V-ing perfect
I could not have striven you could not have striven she could not have striven we could not have striven you could not have striven they could not have striven	I could not have been striving you could not have been striving she 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	V-ing form
could I strive? could you strive? could she strive? could we strive? could you strive? could they strive?	could I be striving? could you be striving? could she be striving? could we be striving? could you be striving? could they be striving?
Perfect	V-ing perfect
could I have striven? could you have striven? could she have striven? could we have striven? could you have striven? could they have striven?	could I have been striving? could you have been striving? could she have been striving? could we have been striving? could you have been striving? could they have been striving?

Interro-negative form

Simple form	V-ing form
could I not strive? could you not strive? could she not strive? could we not strive? could you not strive? could they not strive?	could I not be striving? could you not be striving? could she not be striving? could we not be striving? could you not be striving? could they not be striving?
Perfect	V-ing perfect
could I not have striven? could you not have striven? could she not have striven? could we not have striven? could you not have striven? could they not have striven?	could I not have been striving? could you not have been striving? could she not have been striving? could we not have been striving? could you not have been striving? could they not have been striving?