1. 在美式英文中不太会使用现在完成式 (have/has +过去分词) 而英式英文则相反，在口语上，美国人使用过去简单式 (V+ed) 来替换现在完成式，不过英国人则会用现在完成式。
(1). 过去发生的事, 跟当前的事情有关连:
Jenny feels ill. She ate too much. (美)
Jenny feels ill. She’s eaten too much. (英)
I can’t find my keys. Did you see them anywhere? (美)
I can’t find my keys. have you seen them anywhere? (英)
(2). 在有already, just 或是 yet的句子:
A: Are they going to the show tonight? (美)
B: No. They already saw it.
A: Are they going to the show tonight? (英)
B: No. They’ve already seen it.
A: Is Samantha here? (美)
B: No, she just left.
A: Is Samantha here? (英)
B: No, she has just left.
A: Can I borrow your book? (美)
B: No, I didn’t read it yet.
A: Can I borrow your book? (英)
B: No, I haven’t read it yet.
2. 集合名词 (collective noun) ex: team, government, staff, class
在美式英文中集合名词后面一定得接单数动词，英式英文则可使用单数或复数
My team is losing! (美)
Which team is/are losing? (英)
My family is coming over. (美)
My family is/are coming over. (英)
3. 助动词跟语气助动词 (have, can, will, must, may, should etc)
(1). 在英式英语中，会在情态动词后面加do来回答对方的问题，而美式英文则不加do。
A: Are you coming with us?
B: I might do. (英)
B: I might (美)
(2). 在英式英文使用needn’t是很常见的，而美式英文不使用needn’t而是don’t need to
They needn’t come to school today. (英)
They don’t need to come to school today. (美)
(3). 在英式英文有时候会用shall来替换will, 但美式英文已经不使用shall了
I shall be there later. (英)
I will be there later. (美)
(4). 而英式英文在问其他人意见的时候会使用shall，而美式英文使用should
Shall we ask him to come with us? (英)
Should we ask him to come with us? (美)
(5). 美式英语喜欢用助动词 do, does, did. 而英式英文则是用have, has, had
Have you class today? (英)
Do you have class today? (美)
*由于在语法上英美差异不少因此拆成上下两部分，以免大家没办法一次全部吸收! 而下篇将于下个礼拜上传。祝大家happy learning
