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 can't tenter you can't tenter he can't tenter we can't tenter you can't tenter they can't tenter
V-ing form
I can't be tentering you can't be tentering he can't be tentering we can't be tentering you can't be tentering they can't be tentering
Perfect
I can't have tentered you can't have tentered he can't have tentered we can't have tentered you can't have tentered they can't have tentered
V-ing perfect
I can't have been tentering you can't have been tentering he can't have been tentering we can't have been tentering you can't have been tentering they can't 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't I tenter? can't you tenter? can't he tenter? can't we tenter? can't you tenter? can't they tenter?
V-ing form
can't I be tentering? can't you be tentering? can't he be tentering? can't we be tentering? can't you be tentering? can't they be tentering?
Perfect
can't I have tentered? can't you have tentered? can't he have tentered? can't we have tentered? can't you have tentered? can't they have tentered?
V-ing perfect
can't I have been tentering? can't you have been tentering? can't he have been tentering? can't we have been tentering? can't you have been tentering? can't they have been tentering?