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 can't frighten you can't frighten he can't frighten we can't frighten you can't frighten they can't frighten	I can't be frightening you can't be frightening he can't be frightening we can't be frightening you can't be frightening they can't be frightening
Perfect	V-ing perfect
I can't have frightened you can't have frightened he can't have frightened we can't have frightened you can't have frightened they can't have frightened	I can't have been frightening you can't have been frightening he can't have been frightening we can't have been frightening you can't have been frightening they can't 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't I frighten? can't you frighten? can't he frighten? can't we frighten? can't you frighten? can't they frighten?	can't I be frightening? can't you be frightening? can't he be frightening? can't we be frightening? can't you be frightening? can't they be frightening?
Perfect	V-ing perfect
can't I have frightened? can't you have frightened? can't he have frightened? can't we have frightened? can't you have frightened? can't they have frightened?	can't I have been frightening? can't you have been frightening? can't he have been frightening? can't we have been frightening? can't you have been frightening? can't they have been frightening?