Question

Where must or ought to is used?

Answer 1

Here is your answer
_____________________________

Must is used to express necessity or obligation.
Examples :You must improve your handwriting.
You must get up early.

Must refers to the present or the near future. To talk about the past we use had to (the past form of have to); must has no past form.
Example : Yesterday we had to get up early.

Must is often used when the obligation come
from the speaker.
______________________________
______________________________

Ought (to) express moral obligation or desirability; as,
We ought to love our neighborhood.
We ought to help him.

Ought (to) can also be used to express probability.
Example :
Price ought to come down soon.
This book ought to be very useful.
______________________________

Hope it helped ☺☺☺☺