The English language can sometimes be tricky, especially when it comes to choosing the correct verb forms. Two such verb forms that often cause confusion are “were” and “was.” These past tense forms of the verb “to be” may seem similar, but they have distinct applications.

Were /wɜːʳ/ as a plural verb and second person singular of the past tense of verb be.

For example:

They/you were at the party last night yesternight.
You didn’t tell me you were coming to see me before.
They must have told you how they were given some party Jollof rice at the event.
We use ‘were’ after the verb ‘wish’. It doesn’t matter the number of the subject that precedes it [=she, the men]

I wish she were my wife.
She wishes the men were here.
If you’re discussing things that are unreal or conditional, then use were [=I were and he/she/it were] after subordinators like as though, as if, and if.

https://newsroundtheclock.com/nrtc-english-where-to-use-were-and-was/