General English : Auxiliary Verbs (Must/Have to/Used to)
General English : Auxiliary Verbs (Must/Have to/Used to)
1.Must -
-The modal must is used to indicate total obligation. Stronger than the word should, which offers the person some choice, must carries with it the idea that the person has no choice.
Example-
1. You must disarm the security system before entering the house.2. Shweta must call and cancel her appointment before leaving on vacation today.
3. The game warden must tranquilize the bear in order to relocate it.
4. When applying for this job, you must take a series of tests.
-Must is also used to indicate a logical conclusion. Even though
the situation isn’t completely verifiable, a determined outcome is
assumed based on the available facts.
Example-
1. Neha isn’t answering her phone. She must not be home.(We assume that Neha isn’t home because she isn’t answering her phone.)
2. I can’t find my blue jeans. It must be in the laundry.
(I assume that my blue jeans is in the laundry because I can’t find it.)
2.Have To
-The phrase have to means the same as must (total obligation), therefore it is often considered to be a modal.
Example-
1. Prashant has to go to school today if he wants to go on the field trip.
2. Our star quarterback has to play in the game tonight if we expect to win.
*Important Note- However, had to can be used to indicate a past obligation, but must CANNOT be used for a past obligation.
Example-
1. Prashant had to go to school yesterday if he wanted to go on the field trip.
2.Our star quarterback had to play in the game last night for us to win.
3.Used To
-The modal phrase used to has two grammar rules. Study the following rules for difference in usage and meaning. With the first rule, used to has the same meaning as would. NOTE: This phrase can never be expressed as use to. It must always be used to.
[subject + used to + verb in simple form]
Example-
Ekta used to always take off(verb) her shoes when she was a child. (This represents a past habit.)
This second rule uses a form of the verb be or get in order
to show that someone either is accustomed to something, or became
accustomed to something.
[subject +be/get+ used to + verb + ing]
I am used to taking a shower every morning before work.
(I am accustomed to taking a shower every morning before work.
I got used to taking a shower every morning before work.
(I became accustomed to taking a shower every morning before work.)
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