In conditional sentences that are realistic, always use the present tense in the "if"part of the sentence and the future in the other part so:
If it makes you happier, I will give you the money or I will give you the money, if it makes you happier.
In unrealistic sentences: the past tense in the "if"part of the sentences and "would/could/might/should + verb in the other part so: If I were rich, I would buy a brand new car.(I would buy a brand new car, if I were rich)
In impossible situations(in the past, so no longer possible): Past perfect in the "if"part and could have/might have/would have + past particible in the other part: If I had known, I would have helped you. I would have helped you, if I had known. This way of explaining the conditional sentences has been helpful for my students.