I can commit you can commit she can commit we can commit you can commit they can commit
V-ing form
I can be committing you can be committing she can be committing we can be committing you can be committing they can be committing
Perfect
I can have committed you can have committed she can have committed we can have committed you can have committed they can have committed
V-ing perfect
I can have been committing you can have been committing she can have been committing we can have been committing you can have been committing they can have been committing
Negation
Simple form
I can't commit you can't commit she can't commit we can't commit you can't commit they can't commit
V-ing form
I can't be committing you can't be committing she can't be committing we can't be committing you can't be committing they can't be committing
Perfect
I can't have committed you can't have committed she can't have committed we can't have committed you can't have committed they can't have committed
V-ing perfect
I can't have been committing you can't have been committing she can't have been committing we can't have been committing you can't have been committing they can't have been committing
Interrogative form
Simple form
can I commit? can you commit? can she commit? can we commit? can you commit? can they commit?
V-ing form
can I be committing? can you be committing? can she be committing? can we be committing? can you be committing? can they be committing?
Perfect
can I have committed? can you have committed? can she have committed? can we have committed? can you have committed? can they have committed?
V-ing perfect
can I have been committing? can you have been committing? can she have been committing? can we have been committing? can you have been committing? can they have been committing?
Interro-negative form
Simple form
can't I commit? can't you commit? can't she commit? can't we commit? can't you commit? can't they commit?
V-ing form
can't I be committing? can't you be committing? can't she be committing? can't we be committing? can't you be committing? can't they be committing?
Perfect
can't I have committed? can't you have committed? can't she have committed? can't we have committed? can't you have committed? can't they have committed?
V-ing perfect
can't I have been committing? can't you have been committing? can't she have been committing? can't we have been committing? can't you have been committing? can't they have been committing?