I can stanch you can stanch he can stanch we can stanch you can stanch they can stanch
V-ing form
I can be stanching you can be stanching he can be stanching we can be stanching you can be stanching they can be stanching
Perfect
I can have stanched you can have stanched he can have stanched we can have stanched you can have stanched they can have stanched
V-ing perfect
I can have been stanching you can have been stanching he can have been stanching we can have been stanching you can have been stanching they can have been stanching
Negation
Simple form
I cannot stanch you cannot stanch he cannot stanch we cannot stanch you cannot stanch they cannot stanch
V-ing form
I cannot be stanching you cannot be stanching he cannot be stanching we cannot be stanching you cannot be stanching they cannot be stanching
Perfect
I cannot have stanched you cannot have stanched he cannot have stanched we cannot have stanched you cannot have stanched they cannot have stanched
V-ing perfect
I cannot have been stanching you cannot have been stanching he cannot have been stanching we cannot have been stanching you cannot have been stanching they cannot have been stanching
Interrogative form
Simple form
can I stanch? can you stanch? can he stanch? can we stanch? can you stanch? can they stanch?
V-ing form
can I be stanching? can you be stanching? can he be stanching? can we be stanching? can you be stanching? can they be stanching?
Perfect
can I have stanched? can you have stanched? can he have stanched? can we have stanched? can you have stanched? can they have stanched?
V-ing perfect
can I have been stanching? can you have been stanching? can he have been stanching? can we have been stanching? can you have been stanching? can they have been stanching?
Interro-negative form
Simple form
can I not stanch? can you not stanch? can he not stanch? can we not stanch? can you not stanch? can they not stanch?
V-ing form
can I not be stanching? can you not be stanching? can he not be stanching? can we not be stanching? can you not be stanching? can they not be stanching?
Perfect
can I not have stanched? can you not have stanched? can he not have stanched? can we not have stanched? can you not have stanched? can they not have stanched?
V-ing perfect
can I not have been stanching? can you not have been stanching? can he not have been stanching? can we not have been stanching? can you not have been stanching? can they not have been stanching?