I can loiter you can loiter she can loiter we can loiter you can loiter they can loiter
V-ing form
I can be loitering you can be loitering she can be loitering we can be loitering you can be loitering they can be loitering
Perfect
I can have loitered you can have loitered she can have loitered we can have loitered you can have loitered they can have loitered
V-ing perfect
I can have been loitering you can have been loitering she can have been loitering we can have been loitering you can have been loitering they can have been loitering
Negation
Simple form
I cannot loiter you cannot loiter she cannot loiter we cannot loiter you cannot loiter they cannot loiter
V-ing form
I cannot be loitering you cannot be loitering she cannot be loitering we cannot be loitering you cannot be loitering they cannot be loitering
Perfect
I cannot have loitered you cannot have loitered she cannot have loitered we cannot have loitered you cannot have loitered they cannot have loitered
V-ing perfect
I cannot have been loitering you cannot have been loitering she cannot have been loitering we cannot have been loitering you cannot have been loitering they cannot have been loitering
Interrogative form
Simple form
can I loiter? can you loiter? can she loiter? can we loiter? can you loiter? can they loiter?
V-ing form
can I be loitering? can you be loitering? can she be loitering? can we be loitering? can you be loitering? can they be loitering?
Perfect
can I have loitered? can you have loitered? can she have loitered? can we have loitered? can you have loitered? can they have loitered?
V-ing perfect
can I have been loitering? can you have been loitering? can she have been loitering? can we have been loitering? can you have been loitering? can they have been loitering?
Interro-negative form
Simple form
can I not loiter? can you not loiter? can she not loiter? can we not loiter? can you not loiter? can they not loiter?
V-ing form
can I not be loitering? can you not be loitering? can she not be loitering? can we not be loitering? can you not be loitering? can they not be loitering?
Perfect
can I not have loitered? can you not have loitered? can she not have loitered? can we not have loitered? can you not have loitered? can they not have loitered?
V-ing perfect
can I not have been loitering? can you not have been loitering? can she not have been loitering? can we not have been loitering? can you not have been loitering? can they not have been loitering?