English verb conjugation
COULD WRENCH

Regular verb: wrench - wrenched - wrenched

Affirmation

Simple form	V-ing form
I could wrench you could wrench she could wrench we could wrench you could wrench they could wrench	I could be wrenching you could be wrenching she could be wrenching we could be wrenching you could be wrenching they could be wrenching
Perfect	V-ing perfect
I could have wrenched you could have wrenched she could have wrenched we could have wrenched you could have wrenched they could have wrenched	I could have been wrenching you could have been wrenching she could have been wrenching we could have been wrenching you could have been wrenching they could have been wrenching

Negation

Simple form	V-ing form
I could not wrench you could not wrench she could not wrench we could not wrench you could not wrench they could not wrench	I could not be wrenching you could not be wrenching she could not be wrenching we could not be wrenching you could not be wrenching they could not be wrenching
Perfect	V-ing perfect
I could not have wrenched you could not have wrenched she could not have wrenched we could not have wrenched you could not have wrenched they could not have wrenched	I could not have been wrenching you could not have been wrenching she could not have been wrenching we could not have been wrenching you could not have been wrenching they could not have been wrenching

Interrogative form

Simple form	V-ing form
could I wrench? could you wrench? could she wrench? could we wrench? could you wrench? could they wrench?	could I be wrenching? could you be wrenching? could she be wrenching? could we be wrenching? could you be wrenching? could they be wrenching?
Perfect	V-ing perfect
could I have wrenched? could you have wrenched? could she have wrenched? could we have wrenched? could you have wrenched? could they have wrenched?	could I have been wrenching? could you have been wrenching? could she have been wrenching? could we have been wrenching? could you have been wrenching? could they have been wrenching?

Interro-negative form

Simple form	V-ing form
could I not wrench? could you not wrench? could she not wrench? could we not wrench? could you not wrench? could they not wrench?	could I not be wrenching? could you not be wrenching? could she not be wrenching? could we not be wrenching? could you not be wrenching? could they not be wrenching?
Perfect	V-ing perfect
could I not have wrenched? could you not have wrenched? could she not have wrenched? could we not have wrenched? could you not have wrenched? could they not have wrenched?	could I not have been wrenching? could you not have been wrenching? could she not have been wrenching? could we not have been wrenching? could you not have been wrenching? could they not have been wrenching?