Countable and uncountable nouns
Countable nouns :
The below nouns are countable. By adding '-s' to the singular,
you get the plural form.
For Example : academicians, geographers, planners, economists,
environmentalists, books, wickets, houses, automobiles, etc.
Uncountable nouns :
There is another set of nouns which cannot be counted.
Look at the following :
water, ecology, nature, air, milk, furniture, luggage, etc.
Auxiliaries of two types, they are primary and modal.
'Be', 'have' and 'do' are the primary auxiliaries in English.
They can be used as main verbs.
'Shall', 'will', 'can', 'may', 'must', 'need' and 'ought to' are called
modal auxiliaries because they suggest the mood of the user (speaker or writer).
Future tense - We shall go by train tomorrow.
Willingness - I shall work for you.
Future tense - I will go to Belgaum next week.
Ability - Chandan can score 90 marks in English.
Request or permission - You can go back once you have completed the work.
Possibility - The train may be cancelled.
Permission - May I come in, Sir?
Obligation - You must do your homework.
Possibility - He must be in a good mood as he is singing.
For 'Need not'
No obligation - I need not go to the market now.
For 'Ought to'
Obligation - You ought to love your neighbour.