English verb conjugation
CAN CRUSH

Regular verb: crush - crushed - crushed

Affirmation

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

Negation

Simple form	V-ing form
I can't crush you can't crush she can't crush we can't crush you can't crush they can't crush	I can't be crushing you can't be crushing she can't be crushing we can't be crushing you can't be crushing they can't be crushing
Perfect	V-ing perfect
I can't have crushed you can't have crushed she can't have crushed we can't have crushed you can't have crushed they can't have crushed	I can't have been crushing you can't have been crushing she can't have been crushing we can't have been crushing you can't have been crushing they can't have been crushing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can't I crush? can't you crush? can't she crush? can't we crush? can't you crush? can't they crush?	can't I be crushing? can't you be crushing? can't she be crushing? can't we be crushing? can't you be crushing? can't they be crushing?
Perfect	V-ing perfect
can't I have crushed? can't you have crushed? can't she have crushed? can't we have crushed? can't you have crushed? can't they have crushed?	can't I have been crushing? can't you have been crushing? can't she have been crushing? can't we have been crushing? can't you have been crushing? can't they have been crushing?