English verb conjugation
CAN MAT

Regular verb: mat - matted - matted

Affirmation

Simple form	V-ing form
I can mat you can mat she can mat we can mat you can mat they can mat	I can be matting you can be matting she 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 she 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 she 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 she 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 she 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 she 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 she 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 she mat? can we mat? can you mat? can they mat?	can I be matting? can you be matting? can she 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 she 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 she 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 she 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 she 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 she 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 she have been matting? can't we have been matting? can't you have been matting? can't they have been matting?