I can tenter you can tenter he can tenter we can tenter you can tenter they can tenter
V-ing form
I can be tentering you can be tentering he can be tentering we can be tentering you can be tentering they can be tentering
Perfect
I can have tentered you can have tentered he can have tentered we can have tentered you can have tentered they can have tentered
V-ing perfect
I can have been tentering you can have been tentering he can have been tentering we can have been tentering you can have been tentering they can have been tentering
Negation
Simple form
I cannot tenter you cannot tenter he cannot tenter we cannot tenter you cannot tenter they cannot tenter
V-ing form
I cannot be tentering you cannot be tentering he cannot be tentering we cannot be tentering you cannot be tentering they cannot be tentering
Perfect
I cannot have tentered you cannot have tentered he cannot have tentered we cannot have tentered you cannot have tentered they cannot have tentered
V-ing perfect
I cannot have been tentering you cannot have been tentering he cannot have been tentering we cannot have been tentering you cannot have been tentering they cannot have been tentering
Interrogative form
Simple form
can I tenter? can you tenter? can he tenter? can we tenter? can you tenter? can they tenter?
V-ing form
can I be tentering? can you be tentering? can he be tentering? can we be tentering? can you be tentering? can they be tentering?
Perfect
can I have tentered? can you have tentered? can he have tentered? can we have tentered? can you have tentered? can they have tentered?
V-ing perfect
can I have been tentering? can you have been tentering? can he have been tentering? can we have been tentering? can you have been tentering? can they have been tentering?
Interro-negative form
Simple form
can I not tenter? can you not tenter? can he not tenter? can we not tenter? can you not tenter? can they not tenter?
V-ing form
can I not be tentering? can you not be tentering? can he not be tentering? can we not be tentering? can you not be tentering? can they not be tentering?
Perfect
can I not have tentered? can you not have tentered? can he not have tentered? can we not have tentered? can you not have tentered? can they not have tentered?
V-ing perfect
can I not have been tentering? can you not have been tentering? can he not have been tentering? can we not have been tentering? can you not have been tentering? can they not have been tentering?