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 cannot simmer you cannot simmer he cannot simmer we cannot simmer you cannot simmer they cannot simmer
V-ing form
I cannot be simmering you cannot be simmering he cannot be simmering we cannot be simmering you cannot be simmering they cannot be simmering
Perfect
I cannot have simmered you cannot have simmered he cannot have simmered we cannot have simmered you cannot have simmered they cannot have simmered
V-ing perfect
I cannot have been simmering you cannot have been simmering he cannot have been simmering we cannot have been simmering you cannot have been simmering they cannot 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 I not simmer? can you not simmer? can he not simmer? can we not simmer? can you not simmer? can they not simmer?
V-ing form
can I not be simmering? can you not be simmering? can he not be simmering? can we not be simmering? can you not be simmering? can they not be simmering?
Perfect
can I not have simmered? can you not have simmered? can he not have simmered? can we not have simmered? can you not have simmered? can they not have simmered?
V-ing perfect
can I not have been simmering? can you not have been simmering? can he not have been simmering? can we not have been simmering? can you not have been simmering? can they not have been simmering?