0) Zero: "IF" + Pres. S., Pres. S.: "IF you HEAT ice, it MELLS"
1) First: "IF" + Pres. S., "WILL" + vb (inf).: "IF you LISTEN to music in English, you WILL IDENTIFY the pronuntiation better"
2) Second: "IF" + Past S., "WOULD" + vb + "COULD" or "WERE": "IF I WERE LIVING in Seville, I COULD practice my Spanish" / "IF I LIVED in Biarritz, I COULD practice my FRENCH"
**"WERE": formal (writtings) / "WAS": informal (speeches, speakings).
YOU ARE READING
English Grammar Tips (I)
Non-FictionGrammar, vocabulary, interviews. Everything you can imagine, ...