SOCIOLINGUISTIC:
We use indirect questions to sound more polite, or less blunt.
TRUE.
D: What time will Sherlock meet Watson?
I: Can you tell me what time Sherlock will meet Watson?
future simple
Can you tell me if she is unhappy?
is she unhappy?
Do you know why he went to the store?
STRUCTURE-WISE
When it's a yes/no question, we remove the auxiliary verb and don't add anything.
FALSE.
We add "if"
D: Is Sherlock going to tell Lestrade what he believes?
I: I wonder if Sherlock is going to tell Lestrade what he believes...
Future with "going to"
Can you tell me when the restaurant is closing?
When is the restaurant closing?
Is she pregnant?
Do you know if he is pregnant?
When it's an open answer question, we remove the auxiliary verb and add "if"
FALSE
We don't add "if".
D: Did you do the homework??
I: Can you tell me if you did the homework?
Simple past
Can you tell me why he was late for the meeting?
Why was he late for the meeting?
Where does she live?
I wonder where she lives.
In an indirect question, the verb comes after the subject.
TRUE
D: Was Morty playing videogames last night?
I: I wonder if Morty was playing videogames last night.
Past continuous
Can you tell me what you were doing at 3pm?
What were you doing at 3pm?
will you buy sushi?
Can you tell me if you will buy sushi?
Even though we remove the auxiliary verb and the verb is placed after the subject, we still keep the question mark in indirect questions.
IT DEPENDS!
D: Do you like to go to the beach?
I: Can you tell me if you like to go to the beach?
Simple present
I was wondering if you are ok.
Are you ok?
When have they been to California?
Do you know when they have been to California?