To ask a yes-no question, simply put 嗎 at the end of a statement. For example, take the following statement:
"You like to drink coffee." Now, add 嗎 to the end of it:
"Do you like to drink coffee?" Note that when turning the statement into a question, the only difference is 嗎. There are no other changes to the words or their order.
Zhè ge shìjiè yǒu guǐ ma?
Do ghosts exist?
Pǔtōnghuà fāyīn róngyì ma?
Is Mandarin pronunciation easy?
Nǐ xǐzǎo le ma ？
Have you taken shower?
Nǐ huì líkāi wǒ ma?
Are you going to leave me?
statement + tag + 嗎
A tag question is used when you want confirmation of something you said. You simply add question tags after statements that you aren't sure about. Some common question tags are: