English verb conjugation
CAN BUTT

Regular verb: butt - butted - butted

Affirmation

Simple form	V-ing form
I can butt you can butt he can butt we can butt you can butt they can butt	I can be butting you can be butting he can be butting we can be butting you can be butting they can be butting
Perfect	V-ing perfect
I can have butted you can have butted he can have butted we can have butted you can have butted they can have butted	I can have been butting you can have been butting he can have been butting we can have been butting you can have been butting they can have been butting

Negation

Simple form	V-ing form
I can't butt you can't butt he can't butt we can't butt you can't butt they can't butt	I can't be butting you can't be butting he can't be butting we can't be butting you can't be butting they can't be butting
Perfect	V-ing perfect
I can't have butted you can't have butted he can't have butted we can't have butted you can't have butted they can't have butted	I can't have been butting you can't have been butting he can't have been butting we can't have been butting you can't have been butting they can't have been butting

Interrogative form

Simple form	V-ing form
can I butt? can you butt? can he butt? can we butt? can you butt? can they butt?	can I be butting? can you be butting? can he be butting? can we be butting? can you be butting? can they be butting?
Perfect	V-ing perfect
can I have butted? can you have butted? can he have butted? can we have butted? can you have butted? can they have butted?	can I have been butting? can you have been butting? can he have been butting? can we have been butting? can you have been butting? can they have been butting?

Interro-negative form

Simple form	V-ing form
can't I butt? can't you butt? can't he butt? can't we butt? can't you butt? can't they butt?	can't I be butting? can't you be butting? can't he be butting? can't we be butting? can't you be butting? can't they be butting?
Perfect	V-ing perfect
can't I have butted? can't you have butted? can't he have butted? can't we have butted? can't you have butted? can't they have butted?	can't I have been butting? can't you have been butting? can't he have been butting? can't we have been butting? can't you have been butting? can't they have been butting?