I can separate you can separate she can separate we can separate you can separate they can separate
V-ing form
I can be separating you can be separating she can be separating we can be separating you can be separating they can be separating
Perfect
I can have separated you can have separated she can have separated we can have separated you can have separated they can have separated
V-ing perfect
I can have been separating you can have been separating she can have been separating we can have been separating you can have been separating they can have been separating
Negation
Simple form
I can't separate you can't separate she can't separate we can't separate you can't separate they can't separate
V-ing form
I can't be separating you can't be separating she can't be separating we can't be separating you can't be separating they can't be separating
Perfect
I can't have separated you can't have separated she can't have separated we can't have separated you can't have separated they can't have separated
V-ing perfect
I can't have been separating you can't have been separating she can't have been separating we can't have been separating you can't have been separating they can't have been separating
Interrogative form
Simple form
can I separate? can you separate? can she separate? can we separate? can you separate? can they separate?
V-ing form
can I be separating? can you be separating? can she be separating? can we be separating? can you be separating? can they be separating?
Perfect
can I have separated? can you have separated? can she have separated? can we have separated? can you have separated? can they have separated?
V-ing perfect
can I have been separating? can you have been separating? can she have been separating? can we have been separating? can you have been separating? can they have been separating?
Interro-negative form
Simple form
can't I separate? can't you separate? can't she separate? can't we separate? can't you separate? can't they separate?
V-ing form
can't I be separating? can't you be separating? can't she be separating? can't we be separating? can't you be separating? can't they be separating?
Perfect
can't I have separated? can't you have separated? can't she have separated? can't we have separated? can't you have separated? can't they have separated?
V-ing perfect
can't I have been separating? can't you have been separating? can't she have been separating? can't we have been separating? can't you have been separating? can't they have been separating?