I can fair you can fair he can fair we can fair you can fair they can fair
V-ing form
I can be fairing you can be fairing he can be fairing we can be fairing you can be fairing they can be fairing
Perfect
I can have faired you can have faired he can have faired we can have faired you can have faired they can have faired
V-ing perfect
I can have been fairing you can have been fairing he can have been fairing we can have been fairing you can have been fairing they can have been fairing
Negation
Simple form
I can't fair you can't fair he can't fair we can't fair you can't fair they can't fair
V-ing form
I can't be fairing you can't be fairing he can't be fairing we can't be fairing you can't be fairing they can't be fairing
Perfect
I can't have faired you can't have faired he can't have faired we can't have faired you can't have faired they can't have faired
V-ing perfect
I can't have been fairing you can't have been fairing he can't have been fairing we can't have been fairing you can't have been fairing they can't have been fairing
Interrogative form
Simple form
can I fair? can you fair? can he fair? can we fair? can you fair? can they fair?
V-ing form
can I be fairing? can you be fairing? can he be fairing? can we be fairing? can you be fairing? can they be fairing?
Perfect
can I have faired? can you have faired? can he have faired? can we have faired? can you have faired? can they have faired?
V-ing perfect
can I have been fairing? can you have been fairing? can he have been fairing? can we have been fairing? can you have been fairing? can they have been fairing?
Interro-negative form
Simple form
can't I fair? can't you fair? can't he fair? can't we fair? can't you fair? can't they fair?
V-ing form
can't I be fairing? can't you be fairing? can't he be fairing? can't we be fairing? can't you be fairing? can't they be fairing?
Perfect
can't I have faired? can't you have faired? can't he have faired? can't we have faired? can't you have faired? can't they have faired?
V-ing perfect
can't I have been fairing? can't you have been fairing? can't he have been fairing? can't we have been fairing? can't you have been fairing? can't they have been fairing?