English verb conjugation
CAN TENSE

Regular verb: tense - tensed - tensed

Affirmation

Simple form	V-ing form
I can tense you can tense he can tense we can tense you can tense they can tense	I can be tensing you can be tensing he can be tensing we can be tensing you can be tensing they can be tensing
Perfect	V-ing perfect
I can have tensed you can have tensed he can have tensed we can have tensed you can have tensed they can have tensed	I can have been tensing you can have been tensing he can have been tensing we can have been tensing you can have been tensing they can have been tensing

Negation

Simple form	V-ing form
I cannot tense you cannot tense he cannot tense we cannot tense you cannot tense they cannot tense	I cannot be tensing you cannot be tensing he cannot be tensing we cannot be tensing you cannot be tensing they cannot be tensing
Perfect	V-ing perfect
I cannot have tensed you cannot have tensed he cannot have tensed we cannot have tensed you cannot have tensed they cannot have tensed	I cannot have been tensing you cannot have been tensing he cannot have been tensing we cannot have been tensing you cannot have been tensing they cannot have been tensing

Interrogative form

Simple form	V-ing form
can I tense? can you tense? can he tense? can we tense? can you tense? can they tense?	can I be tensing? can you be tensing? can he be tensing? can we be tensing? can you be tensing? can they be tensing?
Perfect	V-ing perfect
can I have tensed? can you have tensed? can he have tensed? can we have tensed? can you have tensed? can they have tensed?	can I have been tensing? can you have been tensing? can he have been tensing? can we have been tensing? can you have been tensing? can they have been tensing?

Interro-negative form

Simple form	V-ing form
can I not tense? can you not tense? can he not tense? can we not tense? can you not tense? can they not tense?	can I not be tensing? can you not be tensing? can he not be tensing? can we not be tensing? can you not be tensing? can they not be tensing?
Perfect	V-ing perfect
can I not have tensed? can you not have tensed? can he not have tensed? can we not have tensed? can you not have tensed? can they not have tensed?	can I not have been tensing? can you not have been tensing? can he not have been tensing? can we not have been tensing? can you not have been tensing? can they not have been tensing?