Dear students!!
Is the same the past simple and the present perfect?
We use Past simple to talk about finished actions.
Affirmative: Subject + past simple (verb+ed or 2nd column) + complement
Negative: Subject + didn´t + Verb base form + complement
Interrogative: Did + subject + verb base form + complement?
I ate a salad today, but I didn´t drink orange juice.
I didn´t eat a salad.
Did you eat a salad yesterday?
We use Present Perfect to talk about actions in the past that are still relevant or unfinished.
Affirmative: Subject + has/have + past participle + complement
Negative: Subject + hasn´t /haven´t + past participle + complement
Interrogative: Has/have + subject + past participle + complement?
This week he has called to his granparents, but they haven´t come to his house.
They have studied a lot this month.
We have visited the city this week. (we are in the middle of the week, so it is still true).
She has eaten very healthy this year, but she has to continue like that.
If you can, please, review some of the present perfect and past simple videos:
Past simple Tense - Structuring sentences
Test your English! Past simple versus present perfect
Present perfect versus past simple
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