FORMIn zero conditional sentences, the tense in both parts of the sentence is the simple present.
|If + simple present||simple present|
|If this thing happens||that thing happens.|
- If you heat ice, it melts.
- Ice melts if you heat it.
- When you heat ice, it melts.
- Ice melts when you heat it.
- If it rains, the grass gets wet.
- The grass gets wet if it rains.
- When it rains, the grass gets wet.
- The grass gets wet when it rains.
FUNCTIONThe zero conditional is used to make statements about the real world, and often refers to general truths, such as scientific facts. In these sentences, the time is now or always and the situation is real and possible.
- If you freeze water, it becomes a solid.
- Plants die if they don't get enough water.
- If my husband has a cold, I usually catch it.
- If public transport is efficient, people stop using their cars.
- If you mix red and blue, you get purple.
:cheers:Allah is the graet