This link has a French-speaker giving the present, past, and future tense of être and avoir.
present tense , past tense, future tense of être and avoir by a French-speaker
Listen, repeat.
Activity with être and avoir expressions – there are many ways to use être and avoir that may not always literally translate in English. You can practice some of them here.
Conjugation activity with être and avoir – practice conjugating the verbs in this activity