频率副词放在BE动词前还是后呢

she is always late./i always say to myself.
1.频率副词是表示与次数,频率有关的副词,如:always(总是),usually(经常),sometimes(有时),seldom(不常),once(一次),twice(两次)等.
2.频率副词用在BE后.It is usually hot in summer.夏天天气通常是热的.3.频率副词用在主要动词前.My father usually walks home.我的父亲经常步行回家.4.频率副词用在助动词与主要动词之间.I will always love you.我将永远爱你.5.频率副词用在OUGHT TO之间.You ought often to write to your mother.你应该常给你母亲写信.6.在答句中,频率副词必须放在助动词前.Do you often go there?你常去那里吗?(误)Yes,I do often.是的,我常去.(正)Yes,I often do.是的,我常去.