Grammar Point:To express the frequency adverbs “usually” and “sometimes” in Chinese, we use the terms 常常 chángcháng and 有時时 yǒushí. Structure S + 常常 chángcháng + VO 常常 chángcháng (often, usually) refers to a behavior or action that occurs frequently and with short intervals between occurrences. Therefore, it cannot be used in the negative form….