What is the difference between we're and were?

Were is a verb, used in one of five ways:

1. Second-person singular simple past tense indicative of be.
2. First-person plural simple past tense indicative of be.
3. Second-person plural simple past tense indicative of be.
4. Third-person plural simple past tense indicative of be.
5. Simple imperfect subjunctive in all persons of be.

We're is a contraction formed by the two Words weand are.