I can sough you can sough he can sough we can sough you can sough they can sough
V-ing form
I can be soughing you can be soughing he can be soughing we can be soughing you can be soughing they can be soughing
Perfect
I can have soughed you can have soughed he can have soughed we can have soughed you can have soughed they can have soughed
V-ing perfect
I can have been soughing you can have been soughing he can have been soughing we can have been soughing you can have been soughing they can have been soughing
Negation
Simple form
I can't sough you can't sough he can't sough we can't sough you can't sough they can't sough
V-ing form
I can't be soughing you can't be soughing he can't be soughing we can't be soughing you can't be soughing they can't be soughing
Perfect
I can't have soughed you can't have soughed he can't have soughed we can't have soughed you can't have soughed they can't have soughed
V-ing perfect
I can't have been soughing you can't have been soughing he can't have been soughing we can't have been soughing you can't have been soughing they can't have been soughing
Interrogative form
Simple form
can I sough? can you sough? can he sough? can we sough? can you sough? can they sough?
V-ing form
can I be soughing? can you be soughing? can he be soughing? can we be soughing? can you be soughing? can they be soughing?
Perfect
can I have soughed? can you have soughed? can he have soughed? can we have soughed? can you have soughed? can they have soughed?
V-ing perfect
can I have been soughing? can you have been soughing? can he have been soughing? can we have been soughing? can you have been soughing? can they have been soughing?
Interro-negative form
Simple form
can't I sough? can't you sough? can't he sough? can't we sough? can't you sough? can't they sough?
V-ing form
can't I be soughing? can't you be soughing? can't he be soughing? can't we be soughing? can't you be soughing? can't they be soughing?
Perfect
can't I have soughed? can't you have soughed? can't he have soughed? can't we have soughed? can't you have soughed? can't they have soughed?
V-ing perfect
can't I have been soughing? can't you have been soughing? can't he have been soughing? can't we have been soughing? can't you have been soughing? can't they have been soughing?