Important Grammar Tips

GRAMMAR TIP 1

Possessive case of a noun (nouns with 's) is used with living things. 

Example : Mohan' s cap, Ram's school, sister's right

Incorrect : This room's carpet must be changed.

Correct : The carpet of this room must be changed. (Room is a lifeless thing)

GRAMMAR TIP 2

Sometimes 's is wrongly put in the place of preposition.

Incorrect : This author's book is not good. (Book possessed by this author) 

Correct : The book of this author is not good. (Book written by this author)

GRAMMAR TIP 3

Double possessives should not be used.

Incorrect : My mother's brother's daughter came. 

Correct : The daughter of the brother of my mother came.

GRAMMAR TIP 4

In the case of 'somebody else', 'everyone else ',' anybody else' etc., 's is put after else.

Incorrect : This is somebody's else job. 

Correct : This is somebody else's job.

GRAMMAR TIP 5 

When two nouns are joined by 'and' then 'apostrophe s' ('s) is added to both if we want to denote the possession of both & to last if we denote joint possession. 

Incorrect : Suzy's and Juicy's father was present. 

Correct : Suzy and Juicy's father was present. 

GRAMMAR TIP 6 

When we speak of two things of the same class, the word 'other' should not be left out.

Incorrect : Neither his brother nor any member of the family helped him. 

Correct : Neither his brother nor any other member of the family helped him.

GRAMMAR TIP 7 

Present Indefinite 

Verb form I [ s, es] 

He works hard.

Present Continuous 

is/am/are + verb form I + ing 

He is working hard.

Present Perfect 

has/have + verb form III 

He has worked hard.

Present Perfect Continuous 

has/have + been + verb form I + ing 

He has been working hard.

GRAMMAR TIP 8

Past Indefinite 

verb form II [ did + verb form I] 

He worked hard.

Past Continuous 

was/were + verb form I + ing 

He was working hard.

Past Perfect 

had + verb form III 

He had worked hard.

Past Perfect Continuous 

had + been + verb form I + ing 

He had been working hard.

GRAMMAR TIP 9

Future Indefinite 

will/shall + verb form I 

He will work hard.

Future Continuous 

will/shall + be + verb form I + ing 

He will be working hard.

Future Perfect 

will/shall + have + verb form III 

He will have worked hard for 20 years before he retires.

Future Perfect Continuous 

will/shall + have + been + verb form I + ing 

He will have been working hard for more than 8 hours.