What is the difference between us and we?
Feel free to just provide example sentences.

Both are plural and are referring to you and another person or you and several other people. "We" is used as the plural of "I" and "us" is used as the plural of "me".

Example of "we": plural of "I want to go to the movies." would be "We want to go to the movies." In this case you and someone else (we) are the subject and you guys will be doing the action.

Example of "us": the plural of "They want me to come to their house." would "They want us to come to their house." In this case other people (they) are doing the action.

The majority of the time "we" is used as a subject; whereas "us" is used as objectives.

For the majority of the time if you are confused about when to use "we" or "us" do like the example sentences and replace them with "I" or "me" and see which sounds better. :)