I often watches TV ,watches 后为什么要加es

I often watches TV ,watches 后为什么要加es i often watch TV还是i often watches TV还是watching tv为什么 I often watches sports ___ TV.填介词 He often watches TV on weekends 对watches TV 提问 he often ( watches sports on tv)提问 what ( ) he ( He often watches TV.一空一词. my sister often watches TV while i do my homeworkwhile在句子什么意思? We often watch TV还是 watches TV还是watching tv为什么那什么时候用watches TV 和 watching TV呢 I usually piay sports after school every day she often watches tv in the morning 改为一般疑问句 he often watches TV on weekends.（变为一般疑问句） She often watches TV in the evening改为一般疑问句 He often watches TV at home(用now改写 He often watches TV in the evening.改为过去式 He often watches TV at night （变为一般疑问句） She often watches TV on weekends.问答句是什么啊? My father often watches TV.(变为一般疑问句) My father often watches tv.变一般疑问句. My father often watches TV.(改为一般疑问句）