"不知道⋯⋯好" (bù zhīdào...hǎo) is an expression used to indicate and emphasize that the speaker does not know how to do something, or at least does not know how to do something well.

Structure

Subj. + 不知道 + Verb Phrase + 好

You will sometimes see the adverb 才 preceding the final 好, which serves the purpose of emphasis.

Examples

See also

Sources and further reading

Category:B1 grammar points