if causes

if causes

1. if introduces a condition

   • the main clause is the result of that condition
     • zero conditional
       • present simple (condition) + present simple (result)
         • facts that are generally true or scientific facts the condition allways has the result
     • first conditional
       • present simple (condition) + will/wont + verb (result)
         • a posible situation in the future predicting a likely result in the future
     • second conditonal
       • past simple (condition) + would +verb (result)
         • hypothetical or unlikely situtations unreal or imporable situation now or in the future
     • third conditional
       • past perfect (condition) + would have + participle (result)
         • the person is imagining a different past imaginary sitution that did not happen in the past