I can blear you can blear he can blear we can blear you can blear they can blear
V-ing form
I can be blearing you can be blearing he can be blearing we can be blearing you can be blearing they can be blearing
Perfect
I can have bleared you can have bleared he can have bleared we can have bleared you can have bleared they can have bleared
V-ing perfect
I can have been blearing you can have been blearing he can have been blearing we can have been blearing you can have been blearing they can have been blearing
Negation
Simple form
I can't blear you can't blear he can't blear we can't blear you can't blear they can't blear
V-ing form
I can't be blearing you can't be blearing he can't be blearing we can't be blearing you can't be blearing they can't be blearing
Perfect
I can't have bleared you can't have bleared he can't have bleared we can't have bleared you can't have bleared they can't have bleared
V-ing perfect
I can't have been blearing you can't have been blearing he can't have been blearing we can't have been blearing you can't have been blearing they can't have been blearing
Interrogative form
Simple form
can I blear? can you blear? can he blear? can we blear? can you blear? can they blear?
V-ing form
can I be blearing? can you be blearing? can he be blearing? can we be blearing? can you be blearing? can they be blearing?
Perfect
can I have bleared? can you have bleared? can he have bleared? can we have bleared? can you have bleared? can they have bleared?
V-ing perfect
can I have been blearing? can you have been blearing? can he have been blearing? can we have been blearing? can you have been blearing? can they have been blearing?
Interro-negative form
Simple form
can't I blear? can't you blear? can't he blear? can't we blear? can't you blear? can't they blear?
V-ing form
can't I be blearing? can't you be blearing? can't he be blearing? can't we be blearing? can't you be blearing? can't they be blearing?
Perfect
can't I have bleared? can't you have bleared? can't he have bleared? can't we have bleared? can't you have bleared? can't they have bleared?
V-ing perfect
can't I have been blearing? can't you have been blearing? can't he have been blearing? can't we have been blearing? can't you have been blearing? can't they have been blearing?