Verb conjugation of "weaken" in English

Thanks again for your time. I attached my avatar, it is very similar to the previous one. I have guided the development of the website, and I feel free to share my knowledge with others.
This afternoon I will fly to Chile. My two brothers and sisters live there. They are also very old and my brother has already died. My parents emigrated 30 years ago, but they wanted to stay.
That's a great deal. I know that in the beginning it is difficult to have conversations, especially if you're not stable with vocabulary. Actually, your English does not seem so bad. Have you ever taken a course?