Necessity

Necessity

 

Necessity is something that you must have or do : something that is necessary the quality of being necessary.

Examples of  Necessity: 

1. Sunscreen is an absolute necessity for the beach.

2. food, clothes, and other basic necessities

3. Getting plenty of rest is a necessity.

4. Without a car, living close to work is a necessity.

5. All we took with us on our hiking trip were the bare necessities.

Example:

I'm looking for Nicole. I have to talk to her about our launch date tomorrow. I can't meet her for launch because I have to go to a business meeting at 2:00.

In the daily requirement statement, Have to more frequent / common use than must. Musts usually have a stronger meaning than have to and can indicate an emergency or an urgent need.

     a.  Have got to

     b. Have to  

Have to/ Have got to/ Must

Example: I have to/ have got to/ must study tonight.

Had to used to express needs in the past (past).

Example: I had to study last night.

Example necessity:

A student is asking the teacher about his homework:

Teacher: You don't have to write a long essay; a short one would be ok!
Student: What about the grammar exercise do we need to revise the lesson before we can do it?
Teacher: No, you needn't do the exercise at home as we will surely do it together in the next English lesson.
Student: Ok! Good bye sir.
Teacher: Good bye!