I can relax you can relax he can relax we can relax you can relax they can relax
V-ing form
I can be relaxing you can be relaxing he can be relaxing we can be relaxing you can be relaxing they can be relaxing
Perfect
I can have relaxed you can have relaxed he can have relaxed we can have relaxed you can have relaxed they can have relaxed
V-ing perfect
I can have been relaxing you can have been relaxing he can have been relaxing we can have been relaxing you can have been relaxing they can have been relaxing
Negation
Simple form
I can't relax you can't relax he can't relax we can't relax you can't relax they can't relax
V-ing form
I can't be relaxing you can't be relaxing he can't be relaxing we can't be relaxing you can't be relaxing they can't be relaxing
Perfect
I can't have relaxed you can't have relaxed he can't have relaxed we can't have relaxed you can't have relaxed they can't have relaxed
V-ing perfect
I can't have been relaxing you can't have been relaxing he can't have been relaxing we can't have been relaxing you can't have been relaxing they can't have been relaxing
Interrogative form
Simple form
can I relax? can you relax? can he relax? can we relax? can you relax? can they relax?
V-ing form
can I be relaxing? can you be relaxing? can he be relaxing? can we be relaxing? can you be relaxing? can they be relaxing?
Perfect
can I have relaxed? can you have relaxed? can he have relaxed? can we have relaxed? can you have relaxed? can they have relaxed?
V-ing perfect
can I have been relaxing? can you have been relaxing? can he have been relaxing? can we have been relaxing? can you have been relaxing? can they have been relaxing?
Interro-negative form
Simple form
can't I relax? can't you relax? can't he relax? can't we relax? can't you relax? can't they relax?
V-ing form
can't I be relaxing? can't you be relaxing? can't he be relaxing? can't we be relaxing? can't you be relaxing? can't they be relaxing?
Perfect
can't I have relaxed? can't you have relaxed? can't he have relaxed? can't we have relaxed? can't you have relaxed? can't they have relaxed?
V-ing perfect
can't I have been relaxing? can't you have been relaxing? can't he have been relaxing? can't we have been relaxing? can't you have been relaxing? can't they have been relaxing?