Conditionals: zero conditional


If you mix red and yellow, you get orange - Se você misturar vermelho com amarelo, terá o laranja.

If A happens, B happens.


The zero conditional is used to describe things that are generally true (e.g. facts) and things that often happen (e.g. routines). It is not used to talk about specific instances.


If/when + simple present, simple present.


  • If you heat snow, it melts. (generally true)
  • When the weather is good, the park is really busy. (generally true)
  • When I wake up, I meditate for 10 minutes. (routine)


In the case of things that are generally true, you can usually use ‘when’ instead of ‘if’ without changing the meaning.

Further learning
Description Author Language
Basic overview of how to construct and use the zero conditional. Wall Street English