Would do, would be doing, would have done, would have been doing都是用在假設的情況下, 你/我/他將會如何. Would do: e.g. I would quit my job if I won the lottery. 在假設中了彩票的情況下, 我現在會做什么 (辭職) Would be doing: e.g. I would be dancing at this moment if I hadn’t broken my leg. 在假設沒跌斷腳的情況下, 我現在應會做著什么 (現在應是進行著跳舞動作) Would have done: e.g. I would have finished my homework if you had lent me your reference book. 在假設你借了參考書給我的情况下, 我應已做了什么事情 (完成了我的作業) Would have been doing: e.g. I would have been studying abroad if my parents agreed to pay the tuition fee. 在假設父母答允付學費 (可惜不答允哦) 情況下, 我已經在國外留學了. 這個留學事情是在過去某段時日(in the past) 開始了, 而持續至今.
too 和 as well 是互通的, 放在句子的最後. I love my dad. I love my mom, too. I love my dad, and my mom as well. 而 also是放在主語之後. I love my dad. I (主語) also love my mom.
