EduCareer

A1 (Beginner)Writing

Simple Sentences & Avoiding Fragments

A sentence expresses a complete thought. Every complete sentence needs three things: a subject (who or what), a verb (the action or state), and end punctuation. If a piece of writing is missing one of these, it is a fragment - an incomplete sentence. This lesson teaches you to write complete sentences and spot fragments.

A sentence expresses a complete thought. Every complete sentence needs three things: a subject (who or what), a verb (the action or state), and end punctuation. If a piece of writing is missing one of these, it is a fragment – an incomplete sentence. This lesson teaches you to write complete sentences and spot fragments.

1. The two essential parts

Part Job Example
Subject who or what the sentence is about Emma studies.
Verb the action or state of being Emma studies.

Put them together with end punctuation and you have a complete sentence: Emma studies.

2. Action verbs and linking verbs

Most verbs are action words (run, write, eat). Some are linking verbs – they connect the subject to a describing word. The most common linking verb is be (is, am, are). Others: seem, look, feel, become.

  • Action: James reads every night.
  • Linking: James is tired. / The soup smells good.

3. Compound subjects and verbs

Type Example
Compound subject Emma and James study English.
Compound verb Thomas watches TV and reads at night.

4. Fragments – and how to fix them

A fragment is missing a subject, a verb, or a complete thought. Two easy fixes:

Fragment Fix
“Runs every day.” (no subject) Add a subject: She runs every day.
“The tall student.” (no verb) Add a verb: The tall student is here.
“And writing books.” (piece of a sentence) Join it: He enjoys teaching and writing books.
The hidden “you” in commandsA command like “Close the door.” looks like it has no subject, but it is complete. The subject you is understood: “(You) close the door.” Commands are complete sentences.
Tutor tipMany languages make perfectly correct sentences without a verb – the equivalent of “The house big” is completely normal in them. English does not allow this – you must add the verb be: “The house is big.” Whenever you describe something in English, check that a verb is present. This one habit removes a huge number of fragment errors.

Examples from EduCareer

  • Complete: Emma is a hard-working student.
  • Complete: James and Thomas study and practise every day.
  • Fragment → fixed: A very difficult test. → It was a very difficult test.
Common mistakes

The house big.  →  The house is big.

Is a good student.  →  She is a good student.

Because I was tired.  →  I went home because I was tired.

Check your understanding

Answer the questions below. You will see instantly if you are right.

1.What three things does a complete sentence need?
Subject + verb + end punctuation = complete sentence.
2.Find the subject: "James reads every night."
The subject is who the sentence is about: James.
3.Find the verb: "Emma studies English."
"studies" is the action verb.
4.Is this complete or a fragment? "Runs every day."
There is no subject — who runs?
5.Is this complete or a fragment? "The tall student."
There is no verb — the tall student does what?
6.Which is a linking verb?
"is" (be) links the subject to a description.
7.Fix the fragment: "The house big."
English needs the verb "is": The house is big.
8.Which sentence is complete?
"I went home." has a subject, verb, and complete thought.
9."Emma and James study." has a:
Two subjects joined by "and" = compound subject.
10."Thomas watches TV and reads." has a:
Two verbs for one subject = compound verb.
11.Why is "Close the door." complete?
Commands have an understood subject: (You) close the door.
12.Which is a fragment?
"And writing books." is only a piece of a sentence.
13.Fix: "Is a good student."
Add a subject: She is a good student.
14.Which word is the linking verb? "The soup smells good."
"smells" links the subject to the describing word "good".
15.Which is a complete sentence?
It has a subject (garden) and verb (is).
16.Fix the fragment: "Because it was raining."
Join it to a complete thought.
17.What is missing? "The students in the library."
There is no verb: The students ARE in the library.
18.Which sentence has a compound verb?
One subject (James), two verbs (reads, writes).
19.Choose the complete sentence.
Needs the verb "is".
20.Which is a fragment?
"When the class ended." is incomplete — it needs a main clause.

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