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 cannot grain you cannot grain he cannot grain we cannot grain you cannot grain they cannot grain	I cannot be graining you cannot be graining he cannot be graining we cannot be graining you cannot be graining they cannot be graining
Perfect	V-ing perfect
I cannot have grained you cannot have grained he cannot have grained we cannot have grained you cannot have grained they cannot have grained	I cannot have been graining you cannot have been graining he cannot have been graining we cannot have been graining you cannot have been graining they cannot 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 I not grain? can you not grain? can he not grain? can we not grain? can you not grain? can they not grain?	can I not be graining? can you not be graining? can he not be graining? can we not be graining? can you not be graining? can they not be graining?
Perfect	V-ing perfect
can I not have grained? can you not have grained? can he not have grained? can we not have grained? can you not have grained? can they not have grained?	can I not have been graining? can you not have been graining? can he not have been graining? can we not have been graining? can you not have been graining? can they not have been graining?