Some Important English Rules:

1.For and Since

“For” shows a period of time up to now eg. for 4 days, for a long time, 

They have been playing for two hours 

“Since” shows some point of time in the past. Eg. Since morning, since Monday,

It has been raining since 6 A.M.

2.Little and Much 

Little is used to emphasize there is a small amount of something. Eg. We have made little progress. I have spent a little time in Delhi. 

Much emphasizes a larger amount. Eg. Do you watch much television? 

3.Each and every

When we think about members as individuals we use “each”. Eg. Each seat was covered with a white sheet. 

They rushed out to meet each visitor. 

When we make a general statement for all the individuals we use “every”. Eg. Every child would have milk daily.

4.Verbs- Singular or plural

Nouns like news, physics, mathematics, measles are plural in form but they are treated as singular. eg. 

Measles is a disease. 

Mathematics is the queen of sciences. 

Nouns like government, audience, company, staff, media, crew are used with both plural and singular verbs

5.Universal truths are always in simple present tense 

For example :- The sun rises in the east. 

Man is immortal 

6.The present perfect tense is used to express a recently completed action.  For example :-

I have just finished my work. 

He has gone to school.

7.Tenses in time clause :

Future tense is not used in time clause.  For example -

You will be back soon.I will stay till then. This can be written as 

I will stay till you get back.