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 cannot muck you cannot muck he cannot muck we cannot muck you cannot muck they cannot muck	I cannot be mucking you cannot be mucking he cannot be mucking we cannot be mucking you cannot be mucking they cannot be mucking
Perfect	V-ing perfect
I cannot have mucked you cannot have mucked he cannot have mucked we cannot have mucked you cannot have mucked they cannot have mucked	I cannot have been mucking you cannot have been mucking he cannot have been mucking we cannot have been mucking you cannot have been mucking they cannot 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 I not muck? can you not muck? can he not muck? can we not muck? can you not muck? can they not muck?	can I not be mucking? can you not be mucking? can he not be mucking? can we not be mucking? can you not be mucking? can they not be mucking?
Perfect	V-ing perfect
can I not have mucked? can you not have mucked? can he not have mucked? can we not have mucked? can you not have mucked? can they not have mucked?	can I not have been mucking? can you not have been mucking? can he not have been mucking? can we not have been mucking? can you not have been mucking? can they not have been mucking?