बहुत अच्छे हैं

are very good

→ बहुत
phrase Rare #9,871
are very good अच्छे agrees with a plural or respectful subject; हैं is the plural or respectful form of “are.”
HI: ये आम बहुत अच्छे हैं।
EN: These mangoes are very good.

डोसे बहुत अच्छे हैं।

The dosas are really good.

— 83 (2021)

आपके वीडियो बहुत अच्छे हैं।

Your videos are very good.

— Relatos salvajes (2014)