English verb conjugation
CAN FRIGHTEN

Regular verb: frighten - frightened - frightened

Affirmation

Simple form	V-ing form
I can frighten you can frighten he can frighten we can frighten you can frighten they can frighten	I can be frightening you can be frightening he can be frightening we can be frightening you can be frightening they can be frightening
Perfect	V-ing perfect
I can have frightened you can have frightened he can have frightened we can have frightened you can have frightened they can have frightened	I can have been frightening you can have been frightening he can have been frightening we can have been frightening you can have been frightening they can have been frightening

Negation

Simple form	V-ing form
I cannot frighten you cannot frighten he cannot frighten we cannot frighten you cannot frighten they cannot frighten	I cannot be frightening you cannot be frightening he cannot be frightening we cannot be frightening you cannot be frightening they cannot be frightening
Perfect	V-ing perfect
I cannot have frightened you cannot have frightened he cannot have frightened we cannot have frightened you cannot have frightened they cannot have frightened	I cannot have been frightening you cannot have been frightening he cannot have been frightening we cannot have been frightening you cannot have been frightening they cannot have been frightening

Interrogative form

Simple form	V-ing form
can I frighten? can you frighten? can he frighten? can we frighten? can you frighten? can they frighten?	can I be frightening? can you be frightening? can he be frightening? can we be frightening? can you be frightening? can they be frightening?
Perfect	V-ing perfect
can I have frightened? can you have frightened? can he have frightened? can we have frightened? can you have frightened? can they have frightened?	can I have been frightening? can you have been frightening? can he have been frightening? can we have been frightening? can you have been frightening? can they have been frightening?

Interro-negative form

Simple form	V-ing form
can I not frighten? can you not frighten? can he not frighten? can we not frighten? can you not frighten? can they not frighten?	can I not be frightening? can you not be frightening? can he not be frightening? can we not be frightening? can you not be frightening? can they not be frightening?
Perfect	V-ing perfect
can I not have frightened? can you not have frightened? can he not have frightened? can we not have frightened? can you not have frightened? can they not have frightened?	can I not have been frightening? can you not have been frightening? can he not have been frightening? can we not have been frightening? can you not have been frightening? can they not have been frightening?