ZERO CONDITIONAL The zero conditional used when the time referred to is now or always and the situation is real and possible. This type of conditional is usually used to talk about general facts. The verb tense of both propositions is the "simple present". In conditional type 0 sentences, the term "if" can usually be replaced by "when" without changing the meaning. FORMULA if+simple present ,..simple present EXAMPLES 1 If I study too much, I get tired 2 If public transport works efficient, people stop driving their cars first conditional It's used to talk about things which might happen in the future. Of course, we can't know what will happen in the future, but this describes possible things FORMULA if + present simple, ... will + infinitive EXAMPLES 1 If it rains today, I'll stay at home. 2 If it is warm tomorrow, we'll go to the beach