I can omen you can omen he can omen we can omen you can omen they can omen
V-ing form
I can be omening you can be omening he can be omening we can be omening you can be omening they can be omening
Perfect
I can have omened you can have omened he can have omened we can have omened you can have omened they can have omened
V-ing perfect
I can have been omening you can have been omening he can have been omening we can have been omening you can have been omening they can have been omening
Negation
Simple form
I can't omen you can't omen he can't omen we can't omen you can't omen they can't omen
V-ing form
I can't be omening you can't be omening he can't be omening we can't be omening you can't be omening they can't be omening
Perfect
I can't have omened you can't have omened he can't have omened we can't have omened you can't have omened they can't have omened
V-ing perfect
I can't have been omening you can't have been omening he can't have been omening we can't have been omening you can't have been omening they can't have been omening
Interrogative form
Simple form
can I omen? can you omen? can he omen? can we omen? can you omen? can they omen?
V-ing form
can I be omening? can you be omening? can he be omening? can we be omening? can you be omening? can they be omening?
Perfect
can I have omened? can you have omened? can he have omened? can we have omened? can you have omened? can they have omened?
V-ing perfect
can I have been omening? can you have been omening? can he have been omening? can we have been omening? can you have been omening? can they have been omening?
Interro-negative form
Simple form
can't I omen? can't you omen? can't he omen? can't we omen? can't you omen? can't they omen?
V-ing form
can't I be omening? can't you be omening? can't he be omening? can't we be omening? can't you be omening? can't they be omening?
Perfect
can't I have omened? can't you have omened? can't he have omened? can't we have omened? can't you have omened? can't they have omened?
V-ing perfect
can't I have been omening? can't you have been omening? can't he have been omening? can't we have been omening? can't you have been omening? can't they have been omening?