The document discusses the modal verbs "have to", "don't have to", "should", and "ought to". It explains that "have to" refers to obligation or necessity, such as tasks that must be completed. "Should" is used to give advice or suggest something that is a good idea for general or specific situations. Similarly, "ought to" expresses weak obligation and is used in the same way as "should".
2. HAVE TO REFERS ABOUT OBLIGATION OR
SOMETHING THAT IT´S NECESSARY TO DO.
She has to clean the floor
I have to feed my dog
3. HE SAYS I HAVE TO DO MORE EXERCISE
(HE SAYS IT IS NECESSARY FOR ME TO EXERCISE
MORE)
4. SHOULD IS USED TO GIVE ADVICE OR EXPRESS
SOMETHING THAT IS A GOOD IDEA. CAN BE USED
FOR GENERAL SITUATIONS
AS WELL AS SPECIFIC
You have a headache. You should take an aspirin.
You should always consult a doctor before taking
antibiotics
5. OUGHT TO
This verb is used in the same way as Should. It
expresses a weak obligation.
Karen ought to be more careful
We ought to go together