4. at how we FORM these sentences. or Present Simple IF + Present Simple, Main clause If-clause IF + Present Simple Present Simple If-clause Main clause
8. This is how we FORM the 1st Conditional . or WILL / WON’T + infinitive IF + Present Simple, Main clause If-clause IF + Present Simple WILL / WON’T + infinitive If-clause Main clause
12. Here is how we FORM the 2nd Conditional . or WOULD / WOULDN’T + infinitive IF +Past Simple, Main clause If-clause IF + PAST Simple WOULD / WOULDN’T + infinitive If-clause Main clause