Past Tense:
* "Were" as a simple past tense: This is most commonly translated as "étaient" (plural). For example: "They were happy" would be "Ils étaient heureux."
* "Were" as part of a past perfect tense: This translates as "avaient été" (plural). For example: "They had been to Paris" would be "Ils avaient été à Paris."
Present Tense:
* "Were" as a conditional tense: This is usually translated as "seraient" (plural). For example: "They would be there" would be "Ils seraient là."
Remember:
* The conjugation of the verb "être" (to be) changes depending on the subject pronoun and tense.
* The plural form of "were" will be "étaient" in the past tense and "seraient" in the conditional tense.
Let me know if you have a specific sentence in mind, and I'll be happy to translate it for you!