English verb conjugation
CAN RESERVE

Regular verb: reserve - reserved - reserved

Affirmation

Simple form	V-ing form
I can reserve you can reserve he can reserve we can reserve you can reserve they can reserve	I can be reserving you can be reserving he can be reserving we can be reserving you can be reserving they can be reserving
Perfect	V-ing perfect
I can have reserved you can have reserved he can have reserved we can have reserved you can have reserved they can have reserved	I can have been reserving you can have been reserving he can have been reserving we can have been reserving you can have been reserving they can have been reserving

Negation

Simple form	V-ing form
I cannot reserve you cannot reserve he cannot reserve we cannot reserve you cannot reserve they cannot reserve	I cannot be reserving you cannot be reserving he cannot be reserving we cannot be reserving you cannot be reserving they cannot be reserving
Perfect	V-ing perfect
I cannot have reserved you cannot have reserved he cannot have reserved we cannot have reserved you cannot have reserved they cannot have reserved	I cannot have been reserving you cannot have been reserving he cannot have been reserving we cannot have been reserving you cannot have been reserving they cannot have been reserving

Interrogative form

Simple form	V-ing form
can I reserve? can you reserve? can he reserve? can we reserve? can you reserve? can they reserve?	can I be reserving? can you be reserving? can he be reserving? can we be reserving? can you be reserving? can they be reserving?
Perfect	V-ing perfect
can I have reserved? can you have reserved? can he have reserved? can we have reserved? can you have reserved? can they have reserved?	can I have been reserving? can you have been reserving? can he have been reserving? can we have been reserving? can you have been reserving? can they have been reserving?

Interro-negative form

Simple form	V-ing form
can I not reserve? can you not reserve? can he not reserve? can we not reserve? can you not reserve? can they not reserve?	can I not be reserving? can you not be reserving? can he not be reserving? can we not be reserving? can you not be reserving? can they not be reserving?
Perfect	V-ing perfect
can I not have reserved? can you not have reserved? can he not have reserved? can we not have reserved? can you not have reserved? can they not have reserved?	can I not have been reserving? can you not have been reserving? can he not have been reserving? can we not have been reserving? can you not have been reserving? can they not have been reserving?