I never figured I would become a teacher when I grow up.这句话有没有语病或时态错误呢?

问题描述:

I never figured I would become a teacher when I grow up.
这句话有没有语病或时态错误呢?

I never figured I would become a teacher when I grew up.

时态有问题,最后的grow up应该也用过去式,主从时态一致