I can trundle you can trundle he can trundle we can trundle you can trundle they can trundle
V-ing form
I can be trundling you can be trundling he can be trundling we can be trundling you can be trundling they can be trundling
Perfect
I can have trundled you can have trundled he can have trundled we can have trundled you can have trundled they can have trundled
V-ing perfect
I can have been trundling you can have been trundling he can have been trundling we can have been trundling you can have been trundling they can have been trundling
Negation
Simple form
I cannot trundle you cannot trundle he cannot trundle we cannot trundle you cannot trundle they cannot trundle
V-ing form
I cannot be trundling you cannot be trundling he cannot be trundling we cannot be trundling you cannot be trundling they cannot be trundling
Perfect
I cannot have trundled you cannot have trundled he cannot have trundled we cannot have trundled you cannot have trundled they cannot have trundled
V-ing perfect
I cannot have been trundling you cannot have been trundling he cannot have been trundling we cannot have been trundling you cannot have been trundling they cannot have been trundling
Interrogative form
Simple form
can I trundle? can you trundle? can he trundle? can we trundle? can you trundle? can they trundle?
V-ing form
can I be trundling? can you be trundling? can he be trundling? can we be trundling? can you be trundling? can they be trundling?
Perfect
can I have trundled? can you have trundled? can he have trundled? can we have trundled? can you have trundled? can they have trundled?
V-ing perfect
can I have been trundling? can you have been trundling? can he have been trundling? can we have been trundling? can you have been trundling? can they have been trundling?
Interro-negative form
Simple form
can I not trundle? can you not trundle? can he not trundle? can we not trundle? can you not trundle? can they not trundle?
V-ing form
can I not be trundling? can you not be trundling? can he not be trundling? can we not be trundling? can you not be trundling? can they not be trundling?
Perfect
can I not have trundled? can you not have trundled? can he not have trundled? can we not have trundled? can you not have trundled? can they not have trundled?
V-ing perfect
can I not have been trundling? can you not have been trundling? can he not have been trundling? can we not have been trundling? can you not have been trundling? can they not have been trundling?