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Unit 6 Online Practice Exercises & Review

UNIT 6
1. USED TO & WOULD FOR PAST
 Affirmative Forms
Used to and would are both used for past habits. There is, however, a difference between the two. Would describes repeated actions, but not states, while used to can refer to both repeated actions and states.
Example:
  • On Sundays my parents would always take me to dance school.
  • I used to hate dancing in those days.
Compare these two sentences:
From time to time he would get up and glance critically over his work and look at his models.
I would like to go home.
The second sentence cannot refer to past time as the verb like expresses a state, not an action. Therefore it cannot express a past habit but only a present state. For the very same reason the following sentence is incorrect:

  • While at school he would be the smartest kid in the class.
Instead of would you need to use used to:

  • While at school he used to be the smartest kid in the class.
Negative And Interrogative Forms
As used in the structure used to is a main verb in the past simple tense, the interrogative and negative forms are:

  • Did he use to be the smartest kid?
  • While at school he didn't use to be the smartest kid in the class.
PAST SIMPLE
The past simple is used to express habits and states that happened or existed during a period of time in the past. This period can be implied, or expressed with a time expression or a clause.

  • When I was a child I visited my grandma every weekend. (habit)
  • When my brother was young he liked spinach. (state)
  • Where did you go to primary school? (habit, where the implied period of time is when you went to primary school)
Online Practice

2. Modal Verbs Review Chart


MODAL  VERB
MEANING
EXPRESSING
EXAMPLE

Must
to have to
100 % obligation
I must stop when the traffic lights turn red. 
to be very probable
logical conclusion (deduction)
He must be very tired after such enormous work.
Must Not
not to be allowed to
prohibition
You must not smoke in the hospital.

Can
to be able to
ability
I can swim
to be allowed to
permission
Can I use your phone please?
it is possible
possibility
Smoking can cause cancer !


Could

to be able to
ability in the past
When I was younger I could stay up all night and not get tired.. 
to be allowed to
more polite permission
Excuse me, could I just say something?

it is possible
possibility
It could rain tomorrow!

May
to be allowed to
permission
May I use your phone please?
it is possible, probable
possibility, probability
It may rain tomorrow!

Might
to be allowed to
more polite permission
Might I use your phone please?

it is possible, probable
weak possibility, probability
I might come and visit you in America next year, if I can save enough money.
Need
necessary
necessity
Need I say more?
Need Not
not necessary
lack of necessity /absence of obligation
I need not buy any tomatoes. There are plenty in the fridge. 



Should
Ought To
used to say or ask what is the correct or best thing to do
50 % obligation 
I should / ought to see a doctor. I have a terrible headache.
to suggest an action or to show that it is necessary
advice
You should / ought to revise your lessons
to be very probable
logical conclusion (deduction)
He should / ought to be very tired after such enormous work. 

Had Better
to suggest an action or to show that it is necessary
advice
You 'd better revise your lessons


Online Practice
http://www.myenglishpages.com/site_php_files/grammar-exercise-modals.php
http://www.english-grammar-lessons.com/musthaveto/exercise1.swf
http://www.english-grammar-lessons.com/musthaveto/exercise2.swf
http://www.english-grammar-lessons.com/musthaveto/exercise3.swf
http://www.english-grammar-lessons.com/musthaveto/exercise4.swf
http://www.english-grammar-lessons.com/musthaveto/exercise5.swf
http://www.english-grammar-lessons.com/musthaveto/exercise6.swf
http://www.english-grammar-lessons.com/musthaveto/exercise7.swf
http://www.english-grammar-lessons.com/musthaveto/exercise8.swf
http://www.english-grammar-lessons.com/musthaveto/exercise9.swf
http://www.esec-braamcamp-freire.rcts.pt/index.php?option=com_content&view=article&catid=40%3Apublica&id=119%3Amodal-verbs&Itemid=155

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