English verb conjugation
CAN GRAIN

Regular verb: grain - grained - grained

Affirmation

Simple form	V-ing form
I can grain you can grain he can grain we can grain you can grain they can grain	I can be graining you can be graining he can be graining we can be graining you can be graining they can be graining
Perfect	V-ing perfect
I can have grained you can have grained he can have grained we can have grained you can have grained they can have grained	I can have been graining you can have been graining he can have been graining we can have been graining you can have been graining they can have been graining

Negation

Simple form	V-ing form
I can't grain you can't grain he can't grain we can't grain you can't grain they can't grain	I can't be graining you can't be graining he can't be graining we can't be graining you can't be graining they can't be graining
Perfect	V-ing perfect
I can't have grained you can't have grained he can't have grained we can't have grained you can't have grained they can't have grained	I can't have been graining you can't have been graining he can't have been graining we can't have been graining you can't have been graining they can't have been graining

Interrogative form

Simple form	V-ing form
can I grain? can you grain? can he grain? can we grain? can you grain? can they grain?	can I be graining? can you be graining? can he be graining? can we be graining? can you be graining? can they be graining?
Perfect	V-ing perfect
can I have grained? can you have grained? can he have grained? can we have grained? can you have grained? can they have grained?	can I have been graining? can you have been graining? can he have been graining? can we have been graining? can you have been graining? can they have been graining?

Interro-negative form

Simple form	V-ing form
can't I grain? can't you grain? can't he grain? can't we grain? can't you grain? can't they grain?	can't I be graining? can't you be graining? can't he be graining? can't we be graining? can't you be graining? can't they be graining?
Perfect	V-ing perfect
can't I have grained? can't you have grained? can't he have grained? can't we have grained? can't you have grained? can't they have grained?	can't I have been graining? can't you have been graining? can't he have been graining? can't we have been graining? can't you have been graining? can't they have been graining?