First conditional Look at the first conditional. Notice the different clauses. if clause main clause ( if + Present Simple) (will/won't + infinitive) If I start teaching again, I'll be exhausted after a year · The first conditional talks about the result of a possible event or situation in the future. · The if clause talks about things that are possible, but not certain: If I start teaching again, I'll be exhausted after a year (maybe I will start teaching again). The main clause says that we think the result will be in this situation ( I'm sure I will be exhausted after a year ). · We make the first conditional with: if+ Present Simple, will/won't + infinitive · The if clause can be first or second in the sentence: I'll be exhausted after a year if I start teaching again. · We often use might in the main clause ...