I mean OK as in said in agreement with what someone has suggested. A: We should go to the park. B: OK. If someone used the verb 不 verb structure I would think you should use the same verb in ...
I know both mean "to study" and I also know that while 学 (xué) is transitive, 学习 (xué xí) can be both intransitive and transitive, for example: 我学中文。 (I study «what?» Chinese) = transitive; 我在大学学习。 ...