不要 + Verb
不要 is used to tell someone not to do something, equivalent to "don't" in English. It is placed directly before a verb to form a negative command or prohibition. For example, 不要说话 means "Don't talk" and 不要走 means "Don't leave."
不要在图书馆里大声说话。
bùyào zài túshūguǎn lǐ dàshēng shuōhuà.
Don't talk loudly in the library.
不要担心,一切都会好的。
bùyào dānxīn, yīqiè dōu huì hǎo de.
Don't worry, everything will be fine.
上课的时候不要玩手机。
shàngkè de shíhòu bùyào wán shǒujī.
Don't play with your phone during class.