Present Perfect vs Simple Past — UK vs US

Your friend texts "Have you eaten yet?" and you almost reply "Did you eat yet?" — and both feel normal, because you have heard both. That is the single biggest tense difference between British and American English: when to use the present perfect (have eaten) and when to use the simple past (ate). British English reaches for the present perfect more often; American English is happy with the simple past. This page lines up where they split. If the whole tense system feels shaky, it is mapped out in How the 12 Tenses Work.

A quick reminder of the two tenses

• Simple past — I ate, she went, they finished. A finished action, often with a finished time (yesterday, last week).
• Present perfect — I have eaten, she has gone, they have finished. A past action that still matters now, or one with no exact time given.

The two varieties agree on what these tenses mean. They just disagree on how often to reach for the present perfect.

The three trigger words: already, just, yet

These little words are where the two varieties disagree most.

Look at the pattern: Britain keeps the present perfect (have finished), America often drops to the simple past (finished). Neither is wrong. In a British classroom, use the present perfect with just / already / yet — you will sound right and it is the "textbook" choice.

Recent news

British English tends to use the present perfect for something that has just happened and still matters now:

• UK: The team has won the cup!
• US: The team won the cup!

Both mean the same thing. The British version stresses that it is fresh news; the American version just states it. You will see this a lot in headlines and match reports.

Ever, never, for and since

The present perfect is also the tense for experiences (ever, never) and for stretches of time up to now (for, since):

• Have you ever been to Paris? — I have never been.
• I have lived here for three years. / I have known her since Year 7.

Here the two varieties mostly agree — both use the present perfect. So it is really only the just / already / yet and fresh-news cases where American English swaps in the simple past. Good news: fewer differences than it first looks.

"Have got" vs "have gotten"

Here is a famous one. The past participle of get:

• British English: got — I have got a new phone.
• American English: gotten — I have gotten a new phone.

Gotten is not sloppy or made-up — it is the standard American form, and it was actually the older British form too, centuries ago. But in a UK school, use got. One thing that stays the same on both sides: have got meaning "own" (I have got two brothers) keeps got everywhere — you never say "I have gotten two brothers."

The time-word test

The easiest way to stay on the right side of this is to watch the time words.

• A finished time word — yesterday, last week, in 2019, at the weekend — takes the simple past everywhere: I saw it yesterday. Nobody says "I have seen it yesterday", British or American. This one never splits.
• just, already and yet are the ones that split: present perfect in Britain (I have just seen it), often simple past in America (I just saw it).
• for, since, ever and never take the present perfect in both varieties: I have known her since Year 7.

So the whole difference really lives in three little words. Learn where just / already / yet go for your variety and you have covered the tricky bit.

The takeaway

You do not need two different grammars in your head. The tenses themselves work the same way — see The Present Continuous and The Past Continuous for the -ing forms. What changes is a habit: British English leans on the present perfect with just / already / yet and for fresh news, and uses got; American English is comfortable with the simple past there, and uses gotten. Match the habit to whichever variety you are writing in, and keep it consistent across the whole piece.

Where next

• The Verb System — the young-learner hub — the bigger map this sits inside
• How the 12 Tenses Work — where these two tenses fit
• The Past Continuous — was doing alongside did
• The Present Continuous — am doing vs have done