They won't achieve anything without popular support (UNLESS)
Unless they win/have/get popular support, they won't achieve anything.
I'm in favour of the idea so long as it's not too expensive. (PROVIDED / too much money)
I'm in favour of the idea, provided it does not cost / they do not spend... too much money
The problem with nuclear power is that if an accident happens, it could totally devastate the area. (SUPPOSING)
Supposing an accident happens/happened...Supposing there is/there was an accident, it would totally devastate the area.
I wouldn't choose to do an exam in advanced Maths if I didn't have to. (UNLESS)
I wouldn't choose to do an exam in advanced Maths unless I had to.
They'd study Geography at university if they weren't so good at History. (WERE)
Were they not so good at History, they'd study Geography at university.
The actor will agree to sell his wedding photos if the magazine pays 1 million dollars. (PROVIDED)
The actor will agree to sell his wedding photos provided the magazine pays 1 million dollars
I'd order one of the special dishes from the menu if I weren't allergic to seafood. (WERE)
Were I not allergic to seafood, I'd order one of the special dishes from the menu.
He never admits making a mistake if someone doesn't spot it. (UNLESS)
He never admits making a mistake unless someone spots it.
If you had to recommend a nice hotel in your city to a foreigner, what would you say? (SUPPOSING)
Supposing you had to recommend a nice hotel in your city to a foreigner, what would you say?
We wouldn't have bought the newspaper if you hadn't told us there was an article about our school. (HAD)
Had you not told us there was an article about our school, we wouldn't have bought the newspaper.
How would you feel if your best friend lied to you? (IMAGINE)
Imagine your best friend lied to you, how would you feel?
Imagine if I don’t arrive till after midnight, will the guest-house still be open? (SUPPOSING)
Supposing I don’t arrive till after midnight, will the guest-house still be open?
If you've got a railcard, you can get a senior citizen's reduction. (PROVIDING)
You can get a senior citizen’s reduction providing you’ve got a railcard.
If you don't make a mess you can play in the living room. (unless)
Unless you make a mess you can play in the living room
