Statement + 吗 (yes/no confirmation)

Checking what you heard

• Your friend mentions she's moving next week, and you can't quite believe it.
• you你nǐnext week下个星期xià gè xīng qīthen / just就jiùto move house搬家bān jiā(yes/no ?)吗ma？ — "You're moving as soon as next week?"

Statement + (yes/no ?)吗ma？ = yes/no question

• Add (yes/no ?)吗ma to the end of a statement to make it a yes/no question; word order does not change.
• he他tāis是shìa teacher老师lǎo shī。→ he他tāis是shìa teacher老师lǎo shī(yes/no ?)吗ma？ — "Is he a teacher?"

he他tāis是shìa teacher老师lǎo shī吗ma？

Checking and confirming

• With a rising, surprised tone, (yes/no ?)吗ma checks what you heard: you你nǐnot不búto go去qù(yes/no ?)吗ma？ — "You're not going?"
• A negative (yes/no ?)吗ma question often expects "yes" or shows surprise: you你nǐnot不bútired累lèi(yes/no ?)吗ma？ — "Aren't you tired?"

you你nǐnot不bútired累lèi吗ma？

One question form at a time

Answering a negative question

• Q: you你nǐnot不búlike it喜欢xǐ huan(yes/no ?)吗ma？ A: right对duì，I我wǒnot不búlike it喜欢xǐ huan — "Right, I don't." / not不bú，I我wǒlike it喜欢xǐ huan — "No, I do."
• right对duì agrees with the statement inside the question, which can feel the opposite of English.

right对duì，I我wǒdon't不bùlike it喜欢xǐ huan。

Recap

Read the full reference: HSK 4 grammar — Particles.