在英語中，短語"worry about"後面可以接不同的結構，具體取決於你想要表達的意思。以下是一些常見的用法：
擔憂某事：
直接跟名詞或代詞：She worries about her children's safety when they are out。
使用動名詞形式：Many people worry about what the future holds。
擔心某人：
直接跟名詞或代詞：He worries about his elderly parents living alone。
對某事感到焦慮：
使用動名詞形式：She is worried about her upcoming exams。
擔心可能發生的事情：
使用that從句：She worries that she won't be able to finish the project on time。
不要擔心（安慰的用法）：
使用祈使句或否定句：Don't worry, everything will be fine。
固定搭配：
worry about/over something：She worries about her son's safety when he goes out at night。
worry for someone/something：The parents are worried for their daughter's health after she got sick。
worry over someone/something：He is worrying over the decision he has to make。
worry oneself sick：She worried herself sick about the project and ended up getting a cold。
綜上所述，"worry about"後面可以接名詞、代詞、動名詞，或者使用that從句來表達具體的擔憂內容。在使用動名詞時，是因爲"about"是介詞，介詞後面通常接動詞的ing形式。