This is the first of five High English grammar quizzes looking at conditionals. It focusses in particular on Probable Conditionals - formed with 'if' or 'should'.
As the name suggests, conditionals impose a condition in a sentence. Either one event follows from another, or it depends on the other. Here's an example:
‘I’ll let you drive my car IF you perform well in your exams.’
In this sentence the word in capitals imposes a condition for the son to drive the car (one event), which is to perform well in exams (second event). The son’s driving the car depends on the performance of the son in the exams.