Ielts grammar Guide

For example: She is the tallest. She is the smallest.
IELTS Grammar Rule No. 13
Indefinite Pronouns
Description
Indefinite pronouns are used as an unspecific description of the subject.
This means that Indefinite Pronouns do not indicate a specific object,
quantity or person. Because they are not definite, these pronouns usually
take the third person form.
Indefinite Pronouns take either the singular or plural form. However,
sometimes they can be singular situation and plural in another.
How To Use It
You simply replace the pronoun with the correct indefinite pronoun.
For example: ‘Peter is driving the car.’ > ‘Someone is driving the car.’

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When To Use It
You use Indefinite Pronouns when you either don’t know who or what the
object is or it is not necessary to state who or what the object is.
Important Tip: In English there can NEVER be two negatives in a
sentence.
For example:
‘There isn’t nobody.’ (INCORRECT)
‘There isn’t anybody.’ (CORRECT)
IELTS Grammar Rule No. 14
Conditional
Description
There are three conditionals in English and each one has a specific use
and form. Conditionals are used to describe possible circumstances or
imaginary situations.
How To Use It

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First conditional – This means that the situation is a possibility and quite
likely that it will happen.
Structure: If + present simple, … future simple (Will)
Second conditional – This means that it is a possibility but not very likely
to happen.
Structure: If + past simple, … would/could + infinitive
Third conditional – This means that is impossible to happen because it
refers to the past.