Review of Grammar

Let's start by briefly reviewing the grammar of first conditionals. As you know, two clauses can be differentiated in all conditionals: the "if-clause" (which expresses the possible situation) and the "then-clause" (which expresses the possible result). The "if-clause" is always the subordinate clause and depends on the "then-clause", the main clause (the adverb "then" does not always appear, but "if" has to be present).

Now complete the following rule:

When we talk about conditionals of type 1, we are referring to sentences where the "if-clause" is often in...

...and the "then-clause" is in...