"Ele não comeu hoje."

Translation: He has not eaten today.

[diegopmelo]

Are there a diference between "He did not eat today" and "He has not eaten today." ????

[Paulenrique]

When there is a specific time, we usually use Simple past (did)

[diegopmelo]

Can be give me an example for each sentence? In day by day....!!! thanks

[Paulenrique]

Sure.

To ask for things that started the moment you were born till now, use the present perfect; when you mention when the action happened, use simple past.

— "HAVE you ever EATEN Thai food?" (Meaning your whole life)

— "Sure, I tried it just last week..." (now you have the moment when the action happened -- last week).

You also use the present perfect fot things that have been happening for the past few days or something that has just happened:

• "I haven't been well lately" (past few days)
• "I have just bought my new apartment" (just happened).

You can't say " I haven't gone to the movies last Saturday", but "I didn't go..." (specific time)...

This is the reason why I would use simple past in Duolingo's example...

[diegopmelo]

Ok, thanks a lot...

[latheluvable]

This helps a LOT thanks!

[MercedesRo170922]

yes. ones is past tense and the other is the past participio.