Where is Joe? Do you know...
where Joe is.
Should we start now? I'd like to know if...
we should start now.
Could you babysit tonight? I was wondering...
if you could babysit tonight.
Does she speak Greek? I'd like to know...
if she speaks / whether she speaks Greek.
Had she found this job when she moved here? Can you tell me...
if she had found this job when she moved here.
Where were the boxes? Can you remember...
where the boxes were.
Is it going to rain later? I was wondering if...
it is going to rain later.
Whose car was it? Could you let me know...
whose car it was.
How long has she known him? I'd like to know...
how long she has known him.
Has she been living here long? Can you tell me...
if she has been living here long.
What time does the show start? Do you have any idea...
what time the show starts.
What did he want? Would you mind telling me...
what he wanted.
Is this the right train? Do you have any idea...
if this is / whether this is the right train.
Why did she cry? Can you tell me...
why she cried.
Will they be all right? I wonder...
if they will be / whether they will be all right.