Answer:
Bonjour!
Explanation:
Nous finir les devoirs. - We finish our homework.
Nous finissons les devoirs - We finish the homework .
Nous sommes finissons les devoirs - We are finishing the homework .
Nous sommes finir les devoirs. - We are finishing the homework.
So I would go with Nous finissons les devoir , make sure to look at the pronouns, if it is formal, etc.
Bonne Chance! I am here if you need any more help!