English verb conjugation
CAN AFFIX

Regular verb: affix - affixed - affixed

Affirmation

Simple form	V-ing form
I can affix you can affix he can affix we can affix you can affix they can affix	I can be affixing you can be affixing he can be affixing we can be affixing you can be affixing they can be affixing
Perfect	V-ing perfect
I can have affixed you can have affixed he can have affixed we can have affixed you can have affixed they can have affixed	I can have been affixing you can have been affixing he can have been affixing we can have been affixing you can have been affixing they can have been affixing

Negation

Simple form	V-ing form
I cannot affix you cannot affix he cannot affix we cannot affix you cannot affix they cannot affix	I cannot be affixing you cannot be affixing he cannot be affixing we cannot be affixing you cannot be affixing they cannot be affixing
Perfect	V-ing perfect
I cannot have affixed you cannot have affixed he cannot have affixed we cannot have affixed you cannot have affixed they cannot have affixed	I cannot have been affixing you cannot have been affixing he cannot have been affixing we cannot have been affixing you cannot have been affixing they cannot have been affixing

Interrogative form

Simple form	V-ing form
can I affix? can you affix? can he affix? can we affix? can you affix? can they affix?	can I be affixing? can you be affixing? can he be affixing? can we be affixing? can you be affixing? can they be affixing?
Perfect	V-ing perfect
can I have affixed? can you have affixed? can he have affixed? can we have affixed? can you have affixed? can they have affixed?	can I have been affixing? can you have been affixing? can he have been affixing? can we have been affixing? can you have been affixing? can they have been affixing?

Interro-negative form

Simple form	V-ing form
can I not affix? can you not affix? can he not affix? can we not affix? can you not affix? can they not affix?	can I not be affixing? can you not be affixing? can he not be affixing? can we not be affixing? can you not be affixing? can they not be affixing?
Perfect	V-ing perfect
can I not have affixed? can you not have affixed? can he not have affixed? can we not have affixed? can you not have affixed? can they not have affixed?	can I not have been affixing? can you not have been affixing? can he not have been affixing? can we not have been affixing? can you not have been affixing? can they not have been affixing?