"Do you know...?"
When does the tennis match start?
Do you know when the tennis match starts?
How long is the journey to Tokunoshima?
I don't know long the journey to Tokunoshima is.
Do they like chocolate?
Could you tell me if they like chocolate?
I've forgotten where did I leave my keys
where I left my keys.
Where is the best place to go in London?
Do you know where the best place to go in London is?
How often does he travel?
I don't know how often he travels.
Did she make an Instagram account?
Could you tell me if she made an Instagram account?
I have no idea who will be the next president.
who the next president will be.
Where will the speech contest be?
Do you know where the speech contest will be?
What kind of drink does your sister like?
I don't know what kind of drink your sister likes.
Did you visit her house in London?
Could you tell me if you visited her house in London?
You should ask the man whose seats are those.
whose seats those are.
How long has she been in the Kikujiro Musical?
Do you know how long she has been in the Kikujiro Musical?
Why do we have to study English?
I don't know why we have to study English.
Does he go out every Saturday?
Could you tell me if he goes out every Saturday?
She could tell you how long has he been fishing.
how long he has been fishing.
Why shouldn't I go out at night?
Do you know why I shouldn't go out at night?
Will she become rich?
I don't know if she will become rich.
Did you wash your car?
Could you tell me if you washed your car?
Do you know he hunts Habu, too?
if he hunts Habu, too?