Jim can't get into the room because he doesn't have the key to the door为什么不用gets into而用get into?

Jim can't get into the room because he doesn't have the key to the door为什么不用gets into而用get into?
Jim can't get into the room because he doesn't have the key to the door
为什么不用gets into而用get into?

Jim can't get into the room because he doesn't have the key to the door为什么不用gets into而用get into?
情态动词后用动词原形

can是情态动词 后面得加原型
而且这句话是否定句
e.g.He has an apple.
否定 He does not have an apple.