If you heat ice, it melts, zero conditional (if+ present simple + present simple), first conditional (if + present simple + future (will), If it rains tomorrow, we will stay at home., zero conditional (if+ present simple + present simple), first conditional (if + present simple + future (will), If you press this button, the machine turns on., first conditional (if + present simple + future (will), zero conditional (if+ present simple + present simple), If he doesn't wear a jacket, he will get cold., zero conditional (if+ present simple + present simple), first conditional (if + present simple + future (will)

Zero or First Conditional

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