Which is correct?

They want my sister and I to go away.

They want my sister and me to go away.

I think it's the first one?

2 answers

Take the other person out of the question .

would you say "They want I to go away" or would you say "They want me to go away" ?

Does that answer your question and give you some help ?
Ahh -- you Australians have the same trick we do. :-)