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Sentence structure: Class 11 English
Parts of a sentence, phrases and clauses, simple, compound, complex and compound-complex sentences, sentence types by purpose, conditionals, common errors, punctuation and ways to join and improve sentences, with examples.
Key points
A sentence is a group of words that makes complete sense. It has a subject (who or what the sentence is about) and a predicate (what is said about the subject). In 'The boy kicked the ball', the boy is the subject and kicked the ball is the predicate. The verb is the key word of the predicate.
Sentences by purpose:
- Declarative: makes a statement (The sun rises in the east).
- Interrogative: asks a question (Where do you live?).
- Imperative: gives a command or request (Please close the door).
- Exclamatory: shows strong feeling (What a beautiful garden it is!).
A phrase is a group of words without a subject and finite verb of its own, such as in the morning or running fast. A clause is a group of words that has its own subject and verb. An independent (main) clause can stand alone: I stayed at home. A dependent (subordinate) clause cannot stand alone and begins with a word like because, when, who or that: because it was raining.
Four sentence structures:
- Simple sentence: one independent clause (Hina reads novels).
- Compound sentence: two or more independent clauses joined by and, but, or, so (Hina reads novels, but her brother plays cricket).
- Complex sentence: one independent clause and at least one dependent clause (Hina reads novels when she is free).
- Compound-complex sentence: two independent clauses and at least one dependent clause (Hina reads novels when she is free, and her brother plays cricket).
Types of dependent clause:
- Noun clause: works as a noun (I know that he is honest).
- Adjective clause: describes a noun (The man who called you is my uncle).
- Adverb clause: shows time, place, reason, condition or contrast (She left early because she felt ill).
Conditional sentences have an if clause and a main clause. Type 1 shows a real possibility: If you work hard, you will pass. Type 2 shows an unlikely or imaginary present: If I had a car, I would drive to school. Type 3 shows an imaginary past: If she had left earlier, she would have caught the train. Notice that Type 2 uses 'were' for all subjects in formal English: If I were you, I would apologise.
A sentence fragment is incomplete because it lacks a subject, a verb or a full idea (Because I was late.). A run-on sentence joins two independent clauses with no proper link (I was tired I went to bed). Fix it with a full stop, a semicolon or a joining word: I was tired, so I went to bed.
Punctuation that supports structure:
- A full stop ends a statement and a question mark ends a question.
- A comma separates items in a list, follows an opening phrase and comes before a joining word in a compound sentence.
- A semicolon joins two closely related independent clauses.
- A colon introduces a list or an explanation.
- An apostrophe shows possession (the girl's bag) or a missing letter (don't).
Parallel structure means using the same grammatical form for items in a list. Say 'She likes reading, writing and painting', not 'She likes reading, to write and painting'. Keep modifiers close to the word they describe: 'Walking to school, I saw a rainbow' is clear, but 'I saw a rainbow walking to school' is confusing.
To improve writing, vary the length of sentences. Join short sentences with conjunctions or relative pronouns: 'I have a friend. He lives in Lahore.' becomes 'I have a friend who lives in Lahore.' Use transition words such as however, therefore and moreover to link ideas between sentences.
Study tip: When you write an answer, read each sentence once and ask two questions: does it have a subject and a verb, and does it express a complete idea? For questions on joining or transforming sentences, copy the given words carefully and change only what the instruction asks. Use a mix of simple, compound and complex sentences in your composition, as examiners reward variety that stays correct.
Definitions and flashcards
Say the meaning first, then open the card to check.
Subject
The person or thing that the sentence is about
Predicate
The part of the sentence that tells something about the subject
Clause
A group of words with its own subject and verb
Phrase
A group of words that works as one part of speech but has no finite verb
Conjunction
A word that joins words, phrases or clauses
Complex sentence
A sentence with one main clause and one or more dependent clauses
Fragment
An incomplete group of words punctuated as a sentence
Run-on sentence
Two main clauses joined without proper punctuation or a joining word
Conditional
A sentence that states what happens if a condition is met
Short questions with model answers
These are the kind of questions asked for 2, 3 and 5 marks. Try each one before opening the answer.
What is the difference between a phrase and a clause? (2 marks)
A clause has its own subject and verb, for example 'she sang'. A phrase has no subject and finite verb of its own, for example 'in the garden'.
Name the four kinds of sentence by purpose and give an example of each. (3 marks)
Declarative: The market is closed. Interrogative: Is the market closed? Imperative: Close the market gate. Exclamatory: How quiet the market is!
Explain a compound sentence and a complex sentence with one example each. (3 marks)
A compound sentence has two independent clauses joined by a conjunction such as and, but or so: The bus was late, so we walked. A complex sentence has one independent clause and one dependent clause: We walked because the bus was late. In the first, both parts could stand alone. In the second, the part after because cannot.
Rewrite as a conditional sentence of Type 2: 'I do not have time, so I do not join the club.' (2 marks)
If I had time, I would join the club. Type 2 uses the past simple in the if clause and would with the base verb in the main clause to show an unreal present situation.
Correct and explain: 'Because the match was cancelled.' and 'He was ill he stayed home.' (5 marks)
The first is a fragment because it is a dependent clause with no main clause. Correct it: We went home because the match was cancelled. The second is a run-on sentence with two main clauses and no link. Correct it: He was ill, so he stayed home. Or: He was ill; he stayed home. A joining word or a semicolon makes the relation clear and the punctuation correct.
Combine into one sentence using a relative pronoun: 'The teacher is very kind. She teaches us English.' (2 marks)
The teacher who teaches us English is very kind.
Common mistakes
- Writing a fragment as a full sentence, especially starting with because, although or when and leaving out the main clause.
- Joining two sentences with only a comma (a comma splice), such as 'I was tired, I went to bed'.
- Using 'was' instead of 'were' in the if clause of Type 2 sentences in formal writing.
- Breaking parallel structure in lists, for example 'swimming, to run and cycling'.
- Placing a modifier far from the word it describes, which changes the meaning of the sentence.