You got into so much trouble because you didn't listen to me
-->If you had listened to me, you wouldn't have got into so much trouble
They do not know each other very well so they are still reserved
-->If they know each other very well, they won't be still reserved

I didn't have umbrella with me, so I got wet
-->If I had umbrella with me, I wouldn't have got wet
You drink so much coffee so you can't sleep
--> If you don't drink so much coffee, you can sleep
I don't have any money, so I can't lend you any
--> If I had money, I would lend you any
I didn't have the money, so I didn't buy a suit
--> If I had money, I would have bought a new suit
If we don't get up early, we will miss the train
--> If we get up early, we will not miss the train
If the young girl doesn't stop smoking, she won't be healthy
-->Unless the young girl stopped smoking, she won't be healthy
Linda can't do her home work unless she is free
--> If Linda is free, she can do her homework

You can't join the club unless you are sick
--> If you are sick, you can join the club
I don't have the right change, so we can't get the ticket
-->If I had the right change, we could get the ticket
Bring your raincoat or you will get wet
--> Unless you bring your raincoat, you will get wet
Today isn't sunday, so I can't go to the cinema with you
--> If today hadn't been Sunday, I would have gone to the cinema with you
Unless you were me, you couldn't understand me
--> If you were me, you could understand me
Dick is in prison because a detective recognized him
--> If a detective hadn't recognized Dick, he wouldn't have been in prision
People can't swim unless they study how to swim
--> If people study how to swim, they can swim
Mai is sick now because she didn't follow the doctor's orders
--> If Mai had followed the doctor's orders, she wouldn't have been sick