What is We?
We is pron used by someone speaking or writing to refer to himself or herself and others He said we could go into the exhibition. We were not allowed into the restaurant in jeans. We had a wonderful holiday – we all enjoyed ourselves enormously. (NOTE: When it is the object we becomes us: We gave it to him; He gave it to us. When it follows the (verb) to be, we usually becomes us: Who is it? – It’s us!) ?
source: Easier English, Student Dictionary Upper Intermediate Level