Hi Gabriel, Great question! I would say "I have been ill for two weeks, but I am fine now." The easiest way to explain it to you is if you read these examples: https://tatoeba.org/por/sentences/search?query=%22I+have+been%22&from=eng&to=por https://tatoeba.org/por/sentences/search?query=%22I+was%22&from=eng&to=por As you'll see, we use "I was" for a particular point in the past and "I have been" for a period in the past. Hope that helps! Nathan

The latter is correct in the case. We use present perfect tense to talk about actions started in the past and continuing in the present.(In your case. There are more cases for present perfect usage.) You can study more about present perfect on the following site. https://www.ef.edu/english-resources/english-grammar/present-perfect/