If my mum doesn't go to bed early, ...
You are not very healthy ...
If you heat ice, ...
If you heat water to 100 degrees, ...
If it is sunny in the summer, ...
If you don't charge your phone, ...
The glass often breaks ...
If you fall into the river, ...
it doesn't work.
if you drop it.
if you don't do exercise.
it is usually hot.
it melts.
you get wet.
it boils.
she feels sleepy all day.