OFTEN一词可以用在句尾吗?★为什么?是没这个语言习惯,还是语法使然?

OFTEN一词可以用在句尾吗?★为什么?是没这个语言习惯,还是语法使然? often可以用在句末吗? He doesn't often eat breakfast 为什么doesn't用在often前啊 用在eat前 often后 可以不?为什么? I study English often.often可以放在句尾吗? often可以放在句尾麽? I often piay football.为什么often可以改成usually often能放在句尾吗 为什么在英语句子中有些有often的句子还是用现在进行时啊例如My often go shopping withfriends on sundays She often shop in the mall但often是一般进行时态的标志啊 often,always,usually,sometimes之类的词可以放在句首或句末吗 always ,often,usually,sometimes之类的词可以放在句末吗 为什么go.to the park可以加the,go to.school不可以?还有tSo she often goes to the l___.填的是图书馆,可不可以写复数,还有the是用在什么情况的? 可以用usually回答how often吗? 在he with me often plays basetball中为什么plays要用单数? It's often cold in December,January and February.often 可以放在句尾么 It's cold in December,January and February often often不是副词么 it rains here in the summer .(often).(often)应该在 rains的前面还是后面?为什么? 基因自由组合为什么可以发生在减一前期 often 和 usually有什么区别?那个表示频率更高一些?It has sailed across the Atlantic many times .It has sailed across the Atlantic___[A]often[B]usually选A,但B为什么不行?ps:shall表示将来时,可以用在 A and B 后面么.我知 do you often late for school?请问这个句子是哪不对啊,为什么不对啊?那么为什么这句可以用助动词呢--Do you often go to school late?