Answer: 1. If the subject is you (usted), he (el) or she (ella), --> drop the -ar and add -a.
2. If the subject is I (yo), --> drop the -ar and add -o.
3. If the subject is you (tu), --> drop the -ar and add -as.
4. If the subject is we (nosotros), --> drop the -ar and add -amos.
5. If the subject is you all (ustedes) or they (ellos/ellas), --> drop the -ar and add -an.
Explanation:
Hope this helps!
