1.I won't go to the party ifI'm not invited.
1. I won't go to the party unless i am invited
2.Unless the remembers to set the alarm clock, he will oversleep tomorrow.
If he doesn't rember to set the alarm clock, he will oversleep tomorrow.
3.You can come out with us unless you're got other plans.
You can come out with us if you don't have got other plans.
5.If you don't hurry up,you will miss the concert.
Unless you hurry up, we will miss the concert.