Note that these three words have structural or spelling differences
were we're where
no apostrophe apostrophe "h" added
Also, each of these words
were
Pronunciation: Were rhymes with purr, stir, and her.
Meaning - Were is the past tense of the verb are.
Look at this example of were used in a sentence.
In present tense, this sentence would say
Since were means the same as the past tense of are in this sentence, it is the correct word to use.
SUGGESTION: To test whether were is the correct word to use in a sentence, see if you can use are in its place, putting the sentence into the present tense.
we're
We're looks different from were: it has an apostrophe between the first e and the r.
Pronunciation - We're rhymes with beer, fear, and pier.
Meaning - We're is a contraction made from the two words we and are.
It is correct to use we're when you can substitute we are for it.
Look at this example of we're in a sentence.
This sentence means
Since we're means we are in this sentence, we're is the correct word to use.
where
Where looks different from were and we're because where contains an h.
Pronunciation - Where rhymes with scare, wear, and hair.
Meaning - Where refers to a place and often asks a question.
Where means "in which place" or "to which place."
Look at this example.
This sentence means
Since where means in which place in this sentence, where is the correct word to use.
Look at this example of a question.
This example means
Since where means to which place in this sentence, where is the correct word to use.
Link to exercises on were, we're, and where.