English verb conjugation
CAN TAT

Regular verb: tat - tatted - tatted

Affirmation

Simple form	V-ing form
I can tat you can tat he can tat we can tat you can tat they can tat	I can be tatting you can be tatting he can be tatting we can be tatting you can be tatting they can be tatting
Perfect	V-ing perfect
I can have tatted you can have tatted he can have tatted we can have tatted you can have tatted they can have tatted	I can have been tatting you can have been tatting he can have been tatting we can have been tatting you can have been tatting they can have been tatting

Negation

Simple form	V-ing form
I can't tat you can't tat he can't tat we can't tat you can't tat they can't tat	I can't be tatting you can't be tatting he can't be tatting we can't be tatting you can't be tatting they can't be tatting
Perfect	V-ing perfect
I can't have tatted you can't have tatted he can't have tatted we can't have tatted you can't have tatted they can't have tatted	I can't have been tatting you can't have been tatting he can't have been tatting we can't have been tatting you can't have been tatting they can't have been tatting

Interrogative form

Simple form	V-ing form
can I tat? can you tat? can he tat? can we tat? can you tat? can they tat?	can I be tatting? can you be tatting? can he be tatting? can we be tatting? can you be tatting? can they be tatting?
Perfect	V-ing perfect
can I have tatted? can you have tatted? can he have tatted? can we have tatted? can you have tatted? can they have tatted?	can I have been tatting? can you have been tatting? can he have been tatting? can we have been tatting? can you have been tatting? can they have been tatting?

Interro-negative form

Simple form	V-ing form
can't I tat? can't you tat? can't he tat? can't we tat? can't you tat? can't they tat?	can't I be tatting? can't you be tatting? can't he be tatting? can't we be tatting? can't you be tatting? can't they be tatting?
Perfect	V-ing perfect
can't I have tatted? can't you have tatted? can't he have tatted? can't we have tatted? can't you have tatted? can't they have tatted?	can't I have been tatting? can't you have been tatting? can't he have been tatting? can't we have been tatting? can't you have been tatting? can't they have been tatting?