English verb conjugation
CAN MAT

Regular verb: mat - matted - matted

Affirmation

Simple form	V-ing form
I can mat you can mat he can mat we can mat you can mat they can mat	I can be matting you can be matting he can be matting we can be matting you can be matting they can be matting
Perfect	V-ing perfect
I can have matted you can have matted he can have matted we can have matted you can have matted they can have matted	I can have been matting you can have been matting he can have been matting we can have been matting you can have been matting they can have been matting

Negation

Simple form	V-ing form
I can't mat you can't mat he can't mat we can't mat you can't mat they can't mat	I can't be matting you can't be matting he can't be matting we can't be matting you can't be matting they can't be matting
Perfect	V-ing perfect
I can't have matted you can't have matted he can't have matted we can't have matted you can't have matted they can't have matted	I can't have been matting you can't have been matting he can't have been matting we can't have been matting you can't have been matting they can't have been matting

Interrogative form

Simple form	V-ing form
can I mat? can you mat? can he mat? can we mat? can you mat? can they mat?	can I be matting? can you be matting? can he be matting? can we be matting? can you be matting? can they be matting?
Perfect	V-ing perfect
can I have matted? can you have matted? can he have matted? can we have matted? can you have matted? can they have matted?	can I have been matting? can you have been matting? can he have been matting? can we have been matting? can you have been matting? can they have been matting?

Interro-negative form

Simple form	V-ing form
can't I mat? can't you mat? can't he mat? can't we mat? can't you mat? can't they mat?	can't I be matting? can't you be matting? can't he be matting? can't we be matting? can't you be matting? can't they be matting?
Perfect	V-ing perfect
can't I have matted? can't you have matted? can't he have matted? can't we have matted? can't you have matted? can't they have matted?	can't I have been matting? can't you have been matting? can't he have been matting? can't we have been matting? can't you have been matting? can't they have been matting?