English verb conjugation
CAN MUCK

Regular verb: muck - mucked - mucked

Affirmation

Simple form	V-ing form
I can muck you can muck he can muck we can muck you can muck they can muck	I can be mucking you can be mucking he can be mucking we can be mucking you can be mucking they can be mucking
Perfect	V-ing perfect
I can have mucked you can have mucked he can have mucked we can have mucked you can have mucked they can have mucked	I can have been mucking you can have been mucking he can have been mucking we can have been mucking you can have been mucking they can have been mucking

Negation

Simple form	V-ing form
I can't muck you can't muck he can't muck we can't muck you can't muck they can't muck	I can't be mucking you can't be mucking he can't be mucking we can't be mucking you can't be mucking they can't be mucking
Perfect	V-ing perfect
I can't have mucked you can't have mucked he can't have mucked we can't have mucked you can't have mucked they can't have mucked	I can't have been mucking you can't have been mucking he can't have been mucking we can't have been mucking you can't have been mucking they can't have been mucking

Interrogative form

Simple form	V-ing form
can I muck? can you muck? can he muck? can we muck? can you muck? can they muck?	can I be mucking? can you be mucking? can he be mucking? can we be mucking? can you be mucking? can they be mucking?
Perfect	V-ing perfect
can I have mucked? can you have mucked? can he have mucked? can we have mucked? can you have mucked? can they have mucked?	can I have been mucking? can you have been mucking? can he have been mucking? can we have been mucking? can you have been mucking? can they have been mucking?

Interro-negative form

Simple form	V-ing form
can't I muck? can't you muck? can't he muck? can't we muck? can't you muck? can't they muck?	can't I be mucking? can't you be mucking? can't he be mucking? can't we be mucking? can't you be mucking? can't they be mucking?
Perfect	V-ing perfect
can't I have mucked? can't you have mucked? can't he have mucked? can't we have mucked? can't you have mucked? can't they have mucked?	can't I have been mucking? can't you have been mucking? can't he have been mucking? can't we have been mucking? can't you have been mucking? can't they have been mucking?