We use indirect questions to sound more polite, or less blunt.
TRUE.
D: Is she a party pooper
I: Can you tell me if Moriarty is a pooper?
Simple Present
Why is she unhappy?
Can you tell me why she is unhappy?
Do you have any idea how long Mary has been working here?
How long has Mary been working here?
When it's a yes/no question, we remove the auxiliary verb and don't add anything.
FALSE.
We add "if/whether"
D: Why were Gary and Gabin so angry?
I: Do you know why Gary and Gabin were so angry?
Simple Past
When is the restaurant closing?
Can you tell me when the restaurant is closing?
Can you tell me why she had quit her job before moving here?
Why had she quit her job before moving here?
When it's an open answer question, we remove the auxiliary verb and add "if"
FALSE
We don't add "if".
D: Why haven't you bought the bags yet?
I: Could you, please, tell me why you haven't bought the bags yet?
Present Perfect
Why was he late for the meeting?
Can you tell me why he was late for the meeting?
I was wondering when we must leave.
When must we leave?
In an indirect question, the verb comes after the subject.
TRUE
D: Why are you insisting that I read your paper?
I: I wonder why you are insisting that I read your paper.
Present Continuous
What were you doing yesterday at 3 pm?
Can you tell me what you were doing yesterday at 3 pm?
Do you happen to know what time Lisa will be meeting the boss?
What time will Lisa be meeting the boss?
Even though we remove the auxiliary verb and the verb is placed after the subject, we ALWAYS keep the question mark in indirect questions.
FALSE.
It depends on the phrase you use to introduce the indirect question.
D: How long will the guests be at the party?
I: I would like to know how long the guests will be at the party.
Future Simple
Where has she been?
Can you tell me where she has been?
Do you know what his favourite subject at school was when he was young?
What was his favourite subject at school when he was young?