Past and Present Perfect

Past/Present Perfect

1. editor. (2021, 9 Noviembre). English grammar help: present perfect and past perfect. EF English Live. https://englishlive.ef.com/blog/language-lab/english-grammar-help-present-perfect-and-past-perfect/
2. Past perfect. (2010, 18 Marzo). LearnEnglish. https://learnenglish.britishcouncil.org/es/grammar/english-grammar-reference/past-perfect
3. Present perfect. (2010, 19 Marzo). LearnEnglish. https://learnenglish.britishcouncil.org/grammar/english-grammar-reference/present-perfect

Difference

Past Perfect

When to use it

the difference between the Past and the present is that the events in the past perfect also ended in the past.

I used when you talk about something that happened before something else.

It is mostly used to point out a link between the present and the past.

Examples:

Past:I had been on the train for the past 2 hours. I hadn't been to my grandmother's house in at least a year. Samantha hadn’t had time to explain her side of the story.Present: I haven't played baseball since last year. I have called many people for the party today. The children have made a mess in the kitchen

Present Perfect

How to use it?

Present: Have/Has + Past Participle (positive) Haven't/Hasn't + Past Participle (negative) Have/Has+s+Past Participle ( Question) Past: Had + Past Participle (Positive) Hadn't+ past participle (negative) Had+s+Past Participle (Question)

The present perfect is used when you need to express your experiences or memories that you have in the past that have important in the actuality.