English verb conjugation
CAN BAN

Regular verb: ban - banned - banned

Affirmation

Simple form	V-ing form
I can ban you can ban he can ban we can ban you can ban they can ban	I can be banning you can be banning he can be banning we can be banning you can be banning they can be banning
Perfect	V-ing perfect
I can have banned you can have banned he can have banned we can have banned you can have banned they can have banned	I can have been banning you can have been banning he can have been banning we can have been banning you can have been banning they can have been banning

Negation

Simple form	V-ing form
I can't ban you can't ban he can't ban we can't ban you can't ban they can't ban	I can't be banning you can't be banning he can't be banning we can't be banning you can't be banning they can't be banning
Perfect	V-ing perfect
I can't have banned you can't have banned he can't have banned we can't have banned you can't have banned they can't have banned	I can't have been banning you can't have been banning he can't have been banning we can't have been banning you can't have been banning they can't have been banning

Interrogative form

Simple form	V-ing form
can I ban? can you ban? can he ban? can we ban? can you ban? can they ban?	can I be banning? can you be banning? can he be banning? can we be banning? can you be banning? can they be banning?
Perfect	V-ing perfect
can I have banned? can you have banned? can he have banned? can we have banned? can you have banned? can they have banned?	can I have been banning? can you have been banning? can he have been banning? can we have been banning? can you have been banning? can they have been banning?

Interro-negative form

Simple form	V-ing form
can't I ban? can't you ban? can't he ban? can't we ban? can't you ban? can't they ban?	can't I be banning? can't you be banning? can't he be banning? can't we be banning? can't you be banning? can't they be banning?
Perfect	V-ing perfect
can't I have banned? can't you have banned? can't he have banned? can't we have banned? can't you have banned? can't they have banned?	can't I have been banning? can't you have been banning? can't he have been banning? can't we have been banning? can't you have been banning? can't they have been banning?