What grammatical name can be given to this phrase"whose members share similar attitude",and what is its function

I think you mean coalition, however, synonyms for coalition include alliance, union, bloc, league, combination, confederation, association, confederacy, affiliation and combine.

They function to meet common goals.

The grammatical name for the phrase "whose members share similar attitude" is a relative clause.

Its function in the sentence would be to provide additional information about the members being referred to. Specifically, it indicates that the members being referred to are characterized by sharing a similar attitude.

The phrase "whose members share similar attitude" is a relative clause.

To identify its grammatical name and function, let's break down the phrase:

- "whose" is a relative pronoun that shows possession and introduces the relative clause.
- "members" is a noun, the subject of the relative clause.
- "share" is the main verb of the relative clause.
- "similar attitude" is a noun phrase that describes what the members share. It functions as the object of the verb "share."

Therefore, the grammatical name of the phrase "whose members share similar attitude" is a relative clause, and its function is to provide additional information about the "members" by describing their shared attitude.