English verb conjugation
COULD CRUSH

Regular verb: crush - crushed - crushed

Affirmation

Simple form	V-ing form
I could crush you could crush she could crush we could crush you could crush they could crush	I could be crushing you could be crushing she could be crushing we could be crushing you could be crushing they could be crushing
Perfect	V-ing perfect
I could have crushed you could have crushed she could have crushed we could have crushed you could have crushed they could have crushed	I could have been crushing you could have been crushing she could have been crushing we could have been crushing you could have been crushing they could have been crushing

Negation

Simple form	V-ing form
I could not crush you could not crush she could not crush we could not crush you could not crush they could not crush	I could not be crushing you could not be crushing she could not be crushing we could not be crushing you could not be crushing they could not be crushing
Perfect	V-ing perfect
I could not have crushed you could not have crushed she could not have crushed we could not have crushed you could not have crushed they could not have crushed	I could not have been crushing you could not have been crushing she could not have been crushing we could not have been crushing you could not have been crushing they could not have been crushing

Interrogative form

Simple form	V-ing form
could I crush? could you crush? could she crush? could we crush? could you crush? could they crush?	could I be crushing? could you be crushing? could she be crushing? could we be crushing? could you be crushing? could they be crushing?
Perfect	V-ing perfect
could I have crushed? could you have crushed? could she have crushed? could we have crushed? could you have crushed? could they have crushed?	could I have been crushing? could you have been crushing? could she have been crushing? could we have been crushing? could you have been crushing? could they have been crushing?

Interro-negative form

Simple form	V-ing form
could I not crush? could you not crush? could she not crush? could we not crush? could you not crush? could they not crush?	could I not be crushing? could you not be crushing? could she not be crushing? could we not be crushing? could you not be crushing? could they not be crushing?
Perfect	V-ing perfect
could I not have crushed? could you not have crushed? could she not have crushed? could we not have crushed? could you not have crushed? could they not have crushed?	could I not have been crushing? could you not have been crushing? could she not have been crushing? could we not have been crushing? could you not have been crushing? could they not have been crushing?