Don't be

正常來說，否定句就係don't/ doesn't 加動詞原形，例如don't go 或者 doesn't like. 但係呢個規矩就不適用係be 呢個動詞，只會係簡單咁樣寫返我哋最熟悉嘅 isn't / aren't / am not. 特殊例子只有Don't be，解作「不要」，後面再跟個形容詞，Don't 前面不會有subject (i.e. He, They, etc.).