they often后面加什么

often后用動詞一般使用一般現(xiàn)在時態(tài)，后面的動詞根據(jù)主語的形式而發(fā)生變化。
例句：
They often water the flowers.
他們經(jīng)常澆花。
They often have outdoor sports.
他們經(jīng)常做室外運(yùn)動。