English verb conjugation
CAN PROFESS

Regular verb: profess - professed - professed

Affirmation

Simple form	V-ing form
I can profess you can profess he can profess we can profess you can profess they can profess	I can be professing you can be professing he can be professing we can be professing you can be professing they can be professing
Perfect	V-ing perfect
I can have professed you can have professed he can have professed we can have professed you can have professed they can have professed	I can have been professing you can have been professing he can have been professing we can have been professing you can have been professing they can have been professing

Negation

Simple form	V-ing form
I cannot profess you cannot profess he cannot profess we cannot profess you cannot profess they cannot profess	I cannot be professing you cannot be professing he cannot be professing we cannot be professing you cannot be professing they cannot be professing
Perfect	V-ing perfect
I cannot have professed you cannot have professed he cannot have professed we cannot have professed you cannot have professed they cannot have professed	I cannot have been professing you cannot have been professing he cannot have been professing we cannot have been professing you cannot have been professing they cannot have been professing

Interrogative form

Simple form	V-ing form
can I profess? can you profess? can he profess? can we profess? can you profess? can they profess?	can I be professing? can you be professing? can he be professing? can we be professing? can you be professing? can they be professing?
Perfect	V-ing perfect
can I have professed? can you have professed? can he have professed? can we have professed? can you have professed? can they have professed?	can I have been professing? can you have been professing? can he have been professing? can we have been professing? can you have been professing? can they have been professing?

Interro-negative form

Simple form	V-ing form
can I not profess? can you not profess? can he not profess? can we not profess? can you not profess? can they not profess?	can I not be professing? can you not be professing? can he not be professing? can we not be professing? can you not be professing? can they not be professing?
Perfect	V-ing perfect
can I not have professed? can you not have professed? can he not have professed? can we not have professed? can you not have professed? can they not have professed?	can I not have been professing? can you not have been professing? can he not have been professing? can we not have been professing? can you not have been professing? can they not have been professing?