I stayed home because it was raining, wasn't it/didn't I?

[sitifan]

1. I stayed home because it was raining, wasn't it?
2. I stayed home because it was raining, didn't I?
Which tag question is correct?

 

[jutfrank]

Why do you think you need a question tag? What's 'correct' depends on what you're trying to do and what you mean to say.

 

[sitifan]

Is "because" a subordinating conjunction or coordinating conjunction?
If it is a subordinating conjunction, only #2 is correct because tag questions refer to the main clause, not the subordinate clause.

 

[jutfrank]

Is "because" a subordinating conjunction or coordinating conjunction?

Subordinating.

If it is a subordinating conjunction, only #2 is correct because tag questions refer to the main clause, not the subordinate clause.

That's not right. In sentence 1 the tag goes with it was raining and in sentence 2 it goes with I stayed home. That makes two very different sentences. Both sentences are possible, if a little hard to imagine.