I can acquire you can acquire he can acquire we can acquire you can acquire they can acquire
V-ing form
I can be acquiring you can be acquiring he can be acquiring we can be acquiring you can be acquiring they can be acquiring
Perfect
I can have acquired you can have acquired he can have acquired we can have acquired you can have acquired they can have acquired
V-ing perfect
I can have been acquiring you can have been acquiring he can have been acquiring we can have been acquiring you can have been acquiring they can have been acquiring
Negation
Simple form
I cannot acquire you cannot acquire he cannot acquire we cannot acquire you cannot acquire they cannot acquire
V-ing form
I cannot be acquiring you cannot be acquiring he cannot be acquiring we cannot be acquiring you cannot be acquiring they cannot be acquiring
Perfect
I cannot have acquired you cannot have acquired he cannot have acquired we cannot have acquired you cannot have acquired they cannot have acquired
V-ing perfect
I cannot have been acquiring you cannot have been acquiring he cannot have been acquiring we cannot have been acquiring you cannot have been acquiring they cannot have been acquiring
Interrogative form
Simple form
can I acquire? can you acquire? can he acquire? can we acquire? can you acquire? can they acquire?
V-ing form
can I be acquiring? can you be acquiring? can he be acquiring? can we be acquiring? can you be acquiring? can they be acquiring?
Perfect
can I have acquired? can you have acquired? can he have acquired? can we have acquired? can you have acquired? can they have acquired?
V-ing perfect
can I have been acquiring? can you have been acquiring? can he have been acquiring? can we have been acquiring? can you have been acquiring? can they have been acquiring?
Interro-negative form
Simple form
can I not acquire? can you not acquire? can he not acquire? can we not acquire? can you not acquire? can they not acquire?
V-ing form
can I not be acquiring? can you not be acquiring? can he not be acquiring? can we not be acquiring? can you not be acquiring? can they not be acquiring?
Perfect
can I not have acquired? can you not have acquired? can he not have acquired? can we not have acquired? can you not have acquired? can they not have acquired?
V-ing perfect
can I not have been acquiring? can you not have been acquiring? can he not have been acquiring? can we not have been acquiring? can you not have been acquiring? can they not have been acquiring?