Grammar is a science that deals with correct use of languageTranslate both in conversation and writing.
Sentence
Group of words which makes complete sense.
Example :
The Earth goes around the sun.
Where do you come from ?
Phrase
Group of words which makes sense but not complete sense.They have no subject or predicateof their own.
Example :
in search of.
as soon as possible.
Clause
Group of words which forms part of a sentence, and contains a subject and a predicate.
Example :
The man whom I hate.
While it is raining.
Types of Sentences
Statements or Assertion
A sentence that makes a statement or assertion.
Example :
The sun rises in the east.
The cow eats grass.
Interrogative Sentence
A sentence that asks a question.
Example :
Why did you go there ?
How old are you ?
Imperative Sentence
A sentence which expresses a command, a requestor or a wish.
Example :
Get out of the class.
sit down.
Exclamatory Sentence
A sentence which expresses a sudden, strong feeling.
Example :
How beautiful the sky is!
What a fine morning!