You can take my car as long as/provided (that)/providing 

you don't damage it.

(I will lend you my car on condition that you don't damage it.)

Although/even though he is rich, he lives in a small house.

(In spite of the fact that he is rich, he lives in a small house.)

He is poor and has no house, but even if he had money, he 

wouldn't buy a house.

(Supposing he had the money, he still wouldn't buy a house.)

Take an umbrella in case it rains.

(It might rain, so it's a good idea to take an umbrella.)

In spite of/despite the rain, she walked to the station.

in spite of/despite being blind, he walked to the station.

(without being affected by the rain or by being blind.)

She arrived early so that she could help her colleagues.

(She arrived early for the purpose of helping her colleagues.)

You can count on me whatever you decide to do.

(No matter what your decision is, you can count on me.)

Tom is rich, whereas Jack is poor.

(Tom is rich; in contrast Jack is poor.)

I will lend you my car whenever you need it.

(No matter when you need my car, I will lend it to you.)

My thoughts will be with you wherever you go.

(No matter where you go, my thoughts will be with you.)

You cannot pass this test unless you work for it!

(unless means that you have to work)