Embedded (Indirect) Questions
When the Direct question doesn’t have a question word, the indirect question begins with If or Whether.

Direct Yes/No questions: Is that magazine interesting? | Indirect Yes/No questions: If and Whether have the same meaning. Be careful! I wonder if is that magazine interesting. (wrong) I wonder if that magazine is interesting. (correct)
• Have you read this book? • Can I borrow your pen? | • I want to know whether he has read this book. • I wonder whether I can borrow your pen.
Note: If the questions begin with a question word:
Direct questions: | Indirect questions:
• What’s the article about? | • Tell me what the article is about.

To report questions we can use: wonder, ask, remember,
want to know, know, etc.
Can you tell me
Are you sure
I’m not sure
I can’t tell you
I’d like to know
I’m interested to know
I don’t know
Please tell me
I have no idea
I wonder
I don’t remember
Do you remember
Do you know
Punctuation Note: Use a period at the end of the included question if the sentence is a statement. Use a question mark if the sentence begins with a question.
I don’t know what time it is.
Do you know what time it is?
Usage Note: When asking for information, especially from a stranger, an included question sounds more polite than a direct question.
Direct Question: Who is the director of the day care center?
More polite: Can you tell me who the director of the day care centre is?