Education English | Grammar : Modal Auxiliary Verb | Modal comes from the mode or mood, which means a set of inflected forms of a verb to express whether the activity / situation expressed by the verb it is a fact, a certain attitude, command possibilities or expectations.
A. Statement showing the facts
Jhon bougth the books yesterday
John comes to the meeting every month.
B. Statement that shows a certain attitude
a. suppose : recommend
suggest : propose / recommend
hope : expect
Anna can swim
I should study hard.
Things that need to be considered in the modal auxiliary verb:
1. Modal was never in the form-ing or past, and never have the suffix-s.
It thus applies to all forms of sentence subject either single or plural without undergoing a process of affixation. (without adding-s)
2. In the sentence construction, modal can be arranged in two ways :
a. Modal + Verb 1
He can go drive carefully
You must know your obligation
It would be better to study English.
b.Modal + Have + Verb 3
Gandhi could have gone to school
Sanggam should have finished his homework
He could have been angry with me.
3. Modal placed right after the subject, the statement and at the beginning of the sentence in yes / no question.
I can write well.
Can you write well?
4. In the negative form we add "not" after these modals. Modal + not can be written in full or shortened.
cannot : can't
would not : wouldn't
will not : won't
shall not : shan't
should not : shouldn't
must not : mustn't