I can tonsure you can tonsure he can tonsure we can tonsure you can tonsure they can tonsure
V-ing form
I can be tonsuring you can be tonsuring he can be tonsuring we can be tonsuring you can be tonsuring they can be tonsuring
Perfect
I can have tonsured you can have tonsured he can have tonsured we can have tonsured you can have tonsured they can have tonsured
V-ing perfect
I can have been tonsuring you can have been tonsuring he can have been tonsuring we can have been tonsuring you can have been tonsuring they can have been tonsuring
Negation
Simple form
I cannot tonsure you cannot tonsure he cannot tonsure we cannot tonsure you cannot tonsure they cannot tonsure
V-ing form
I cannot be tonsuring you cannot be tonsuring he cannot be tonsuring we cannot be tonsuring you cannot be tonsuring they cannot be tonsuring
Perfect
I cannot have tonsured you cannot have tonsured he cannot have tonsured we cannot have tonsured you cannot have tonsured they cannot have tonsured
V-ing perfect
I cannot have been tonsuring you cannot have been tonsuring he cannot have been tonsuring we cannot have been tonsuring you cannot have been tonsuring they cannot have been tonsuring
Interrogative form
Simple form
can I tonsure? can you tonsure? can he tonsure? can we tonsure? can you tonsure? can they tonsure?
V-ing form
can I be tonsuring? can you be tonsuring? can he be tonsuring? can we be tonsuring? can you be tonsuring? can they be tonsuring?
Perfect
can I have tonsured? can you have tonsured? can he have tonsured? can we have tonsured? can you have tonsured? can they have tonsured?
V-ing perfect
can I have been tonsuring? can you have been tonsuring? can he have been tonsuring? can we have been tonsuring? can you have been tonsuring? can they have been tonsuring?
Interro-negative form
Simple form
can I not tonsure? can you not tonsure? can he not tonsure? can we not tonsure? can you not tonsure? can they not tonsure?
V-ing form
can I not be tonsuring? can you not be tonsuring? can he not be tonsuring? can we not be tonsuring? can you not be tonsuring? can they not be tonsuring?
Perfect
can I not have tonsured? can you not have tonsured? can he not have tonsured? can we not have tonsured? can you not have tonsured? can they not have tonsured?
V-ing perfect
can I not have been tonsuring? can you not have been tonsuring? can he not have been tonsuring? can we not have been tonsuring? can you not have been tonsuring? can they not have been tonsuring?