Zero and first conditional

Zero and first conditional

1. Zero conditional

   • The "zero conditional" is used when the time we refer to is now or always and the situation is real and possible
     • In conditional sentences of type 0, the term "if" can normally be replaced by "when" without changing the meaning.
       • examples
         • If you heat ice, it melts.
         • Ice melts if you heat it
         • When you heat ice, it melts.

2. First conditional

   • The "type 1 conditional" is used to refer to the present or future when the situation is real.
     • In these sentences, the "if" clause takes the "simple present" and the main proposition the "simple future"
       • examples
     • En estas oraciones, la cláusula "if" adopta el "simple present" y la proposición principal el "simple future"
       • examples
         • If not study, do not pass the exam
         • If I exercise, will lose weight
         • If you do not eat, get sick

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