Were(verb)-2nd person past plural, a state of being.
EX:
Where were you yesterday?
Her eyes were brown.
The dog's were fed last night.
Was(verb)-1st and 3rd person past tense.
EX:
It was raining earlier.
She was beautiful on her wedding day.
The dog was dirty before having a bath.
Went(verb)-Past tense of 'go'.
EX:
He went to the theater.
They went to buy groceries.
She went camping with her family last summer.