I can simmer you can simmer he can simmer we can simmer you can simmer they can simmer
V-ing form
I can be simmering you can be simmering he can be simmering we can be simmering you can be simmering they can be simmering
Perfect
I can have simmered you can have simmered he can have simmered we can have simmered you can have simmered they can have simmered
V-ing perfect
I can have been simmering you can have been simmering he can have been simmering we can have been simmering you can have been simmering they can have been simmering
Negation
Simple form
I can't simmer you can't simmer he can't simmer we can't simmer you can't simmer they can't simmer
V-ing form
I can't be simmering you can't be simmering he can't be simmering we can't be simmering you can't be simmering they can't be simmering
Perfect
I can't have simmered you can't have simmered he can't have simmered we can't have simmered you can't have simmered they can't have simmered
V-ing perfect
I can't have been simmering you can't have been simmering he can't have been simmering we can't have been simmering you can't have been simmering they can't have been simmering
Interrogative form
Simple form
can I simmer? can you simmer? can he simmer? can we simmer? can you simmer? can they simmer?
V-ing form
can I be simmering? can you be simmering? can he be simmering? can we be simmering? can you be simmering? can they be simmering?
Perfect
can I have simmered? can you have simmered? can he have simmered? can we have simmered? can you have simmered? can they have simmered?
V-ing perfect
can I have been simmering? can you have been simmering? can he have been simmering? can we have been simmering? can you have been simmering? can they have been simmering?
Interro-negative form
Simple form
can't I simmer? can't you simmer? can't he simmer? can't we simmer? can't you simmer? can't they simmer?
V-ing form
can't I be simmering? can't you be simmering? can't he be simmering? can't we be simmering? can't you be simmering? can't they be simmering?
Perfect
can't I have simmered? can't you have simmered? can't he have simmered? can't we have simmered? can't you have simmered? can't they have simmered?
V-ing perfect
can't I have been simmering? can't you have been simmering? can't he have been simmering? can't we have been simmering? can't you have been simmering? can't they have been simmering?