I'm not sure why
English vocabulary and translations (See all)
I'm not sure why (you find this so hard): I don't know why (you find this hard)
- "To be honest, I'm not sure why we keep coming back."
- "I'm not sure why he would choose to live there - from what I've read, it seems like nothing but large black bears and rough lumberjacks."
Do you have smart way of remembering 'I'm not sure why'? Share it with us!