Unit 9
por Estefania Medina
1. Present perfect + for or since
1.1. Use the present perfect + for or since to talk about actions and states which started in the past and are still true now.
1.1.1. For or since? Use for + a period of time, e.g. for two weeks, for ten years... Use since with the beginning of a period of time, e.g. since 1980
2. Second conditional: if + past, would /wouldn´t
2.1. Use if + past to talk about an imaginary or hypothetical future situation and would or wouldn´t + verb to talk about the consequence.
2.1.1. Be in second conditionals: you can use were (instead of was) after I / He / She/ It