A sentence is a group of words that are put together to mean something. A sentence is the basic unit of language which expresses a complete thought.

In simple words, a sentence is a set of words that contain a subject and a predicate.

  1. A subject ( what the sentence is about, the topic of the sentence)
  2. A predicate ( what is said about the subject)

There are three important characteristics of a sentence:-

  1. It expresses a complete thought or idea.

Example:- green tree is the (it is a group of words but it is not a sentence because it is meaningless)

The Tree is green (it is a sentence because it is meaningful)

2. It must have a subject and a verb. Sometimes, subject is not given but it is understandable.

Example:- Put the pen there (in this subject is not given but you is implied subject here)

3. It is the most important characteristic of sentence. The meaning of any sentence is different based on different expression. This expression may be of a statement, a question, a command or any exclamation.


  • Declarative sentence
  • Interrogative sentence
  • Imperative sentence
  • Exclamatory sentence

1.Declarative sentence:- Declarative sentences are those to tell information about anything. They end with a period. Example:-

He is a handsome boy. (Here we are defining the beauty of a girl). They all are end with a period.

2.Interrogative sentences:-Interrogative sentences are used to ask a question. They are end with a question mark. They starts with Wh words Like- who, where, whom, what, when,why and so on. Whenever we ask a question we use Interrogative sentences. For example:-

  • Where are you?
  • Whose pencil is this?
  • What are you doing?
  • When it happens?

3.Imperative sentences:-Imperative sentences are those which are gives command or instruction and ask for request. They end with period and exclamation mark depending on how forcefully say any sentence. If sentence is spoken more forcefully and the exclamation mark is used otherwise a period is used. Example:-

  • Shut the front door
  • Wait for me!

Whenever we are giving a command and asking for the request these sentences(Imperative) are used.

4.Exclamatory sentences:-Exclamatory sentences are used to express strong feelings and emotions ( end with a exclamation mark). When we are happy, angry or surprised we are used exclamation to express out our emotion. Example:-

  • What a beautiful dress.
  • She is a such a nice girl.

English Grammar Topics

NounParts of Speech

All Types of Tenses

Present SimplePresent Continuous
Present PerfectPresent Perfect Continuous
Past SimplePast Continuous
Past PerfectPast Perfect Continuous
Future SimpleFuture Continuous
Future PerfectFuture Perfect Continuous