I can lose you can lose she can lose we can lose you can lose they can lose
V-ing form
I can be losing you can be losing she can be losing we can be losing you can be losing they can be losing
Perfect
I can have lost you can have lost she can have lost we can have lost you can have lost they can have lost
V-ing perfect
I can have been losing you can have been losing she can have been losing we can have been losing you can have been losing they can have been losing
Negation
Simple form
I can't lose you can't lose she can't lose we can't lose you can't lose they can't lose
V-ing form
I can't be losing you can't be losing she can't be losing we can't be losing you can't be losing they can't be losing
Perfect
I can't have lost you can't have lost she can't have lost we can't have lost you can't have lost they can't have lost
V-ing perfect
I can't have been losing you can't have been losing she can't have been losing we can't have been losing you can't have been losing they can't have been losing
Interrogative form
Simple form
can I lose? can you lose? can she lose? can we lose? can you lose? can they lose?
V-ing form
can I be losing? can you be losing? can she be losing? can we be losing? can you be losing? can they be losing?
Perfect
can I have lost? can you have lost? can she have lost? can we have lost? can you have lost? can they have lost?
V-ing perfect
can I have been losing? can you have been losing? can she have been losing? can we have been losing? can you have been losing? can they have been losing?
Interro-negative form
Simple form
can't I lose? can't you lose? can't she lose? can't we lose? can't you lose? can't they lose?
V-ing form
can't I be losing? can't you be losing? can't she be losing? can't we be losing? can't you be losing? can't they be losing?
Perfect
can't I have lost? can't you have lost? can't she have lost? can't we have lost? can't you have lost? can't they have lost?
V-ing perfect
can't I have been losing? can't you have been losing? can't she have been losing? can't we have been losing? can't you have been losing? can't they have been losing?