'In case' means 'if. Generally, we use 'present indefinite tense' after 'in case'.
I will start early in case....
I will start early in case I become late.
- Don't forget to carry an umbrella in case....
Don't forget to carry an umbrella in case it rains.
N.B: But we must use 'past tense' after 'in case' if the Principal Clause is in the 'past tense'.
- They walked very fast in case....
They walked very fast in case they missed the train.
- My father started office early in case...
My father started office early in case he got stuck in a traffic jam.
Students will have to learn some proverbs using complex sentences.
- Where there is life...
Where there is life, there is hope.
- Make hay while.... Make hay while the sun shines.
- Where there is a will... Where there is a will there is a way.
- As you sow.... As you sow so shall you reap.
- He laughs best who.... He laughs best who laughs last.
Use of Past Indefinite Tense and Past Perfect Tense
If the Principal Clause uses Past Indefinite Tense, the Subordinate Clause generally uses Past Perfect Tense and vice-versa.
- He had taken his breakfast before....
He had taken his breakfast before he went to college.
- We returned home after...
We returned home after the sun had set.
3.The boys did not return home until....
The boys did not return home until the sun had set