Questions & Answers about הוא כבר ארז את המזוודה שלו, אבל אני עוד לא ארזתי את שלי.
Everyday Hebrew usually does not use a separate tense like the English present perfect.
So:
- הוא כבר ארז can mean he packed or he has already packed
- אני עוד לא ארזתי can mean I didn’t pack yet or more naturally I haven’t packed yet
Hebrew normally uses the past tense form and lets context do the rest.
Also, Hebrew does not need an extra helping verb like have or do here.
כבר means already.
So:
- הוא כבר ארז = He already packed / He has already packed
It often appears before the verb, as it does here.