Did you know that a complete sentence can begin with “because”? “Because the bus was late, Amir missed the start” is complete: the because-clause gives the reason, and the main clause states the result. The word itself is not the problem.
For Bukit Timah parents checking English tuition writing, ask the child to underline the clause beginning with because and box the main clause. If the writing stops at “Because the bus was late,” it is normally a fragment in formal school writing because the reader is still waiting for the main idea.
Keep the original sentence and ask two questions: “Because what?” and “What happened as a result?” Then write one complete version beginning with because and another with the reason after the main clause.
eduKateSG · Bukit Timah · Practical learning guide
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SECTION 1 OF 5
Find the reason and the main message
In “Because the bus was late, Amir missed the start,” the dependent clause explains why, while “Amir missed the start” can stand as the main clause.
A student may have a clear reason but omit the result, especially when the missing idea feels obvious to them. Ask them to say the full thought aloud before editing punctuation.
Do not correct only by moving because to the middle. The learning target is clause completeness and meaning, not a preferred first word.
SECTION 2 OF 5
Build the two common sentence patterns
Pattern one places the reason first: “Because the path was wet, the runners slowed down.” The introductory dependent clause is followed by a comma before the main clause.
Pattern two places the main clause first: “The runners slowed down because the path was wet.” In a straightforward sentence like this, a comma is usually unnecessary before the essential reason clause.
Ask the child to transform one pattern into the other while preserving meaning. This reveals whether they control the clauses or merely memorise a punctuation mark.
SECTION 3 OF 5
Distinguish a fragment from deliberate style
In conversation, advertising and some literary writing, a dependent clause may appear alone for effect or as an answer to a question. That does not make every fragment suitable for an examination response or formal paragraph.
For school editing, teach the standard complete construction first. A deliberate exception is useful only when the writer understands the expected form and has a genuine rhetorical purpose.
If a worksheet asks for a complete sentence, follow that instruction even when the fragment could be understood from context.
SECTION 4 OF 5
Connect the rule to cause-and-effect writing
Starting with because can help the writer foreground a reason, but the sentence still needs a precise result. Check that the relationship is logical rather than merely grammatical.
Avoid doubling the same link with “Because the bus was late, so Amir missed the start.” Choose the because-pattern or the coordinating-so pattern for that single reason–result relationship.
In comprehension and Science explanations, accurate cause-and-effect content matters alongside sentence structure. A complete sentence can still be factually wrong.
SECTION 5 OF 5
Check independent use in a short paragraph
Give the child three new reason–result pairs. Ask for one because-first sentence, one main-clause-first sentence and one correction of a fragment.
Review meaning, completeness and comma placement separately. If the child fixes the comma but still omits the main clause, the central gap remains.
Match grammar practice to the learner’s actual Primary, PSLE or secondary English work. For SEC preparation, use the correct subject level and examination-year materials rather than inferring every requirement from a Posting Group.
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Bring one useful example to a consultation
Bring the child’s original attempt, the exact task and any help already used. Ask which idea or decision needs teaching, how a fresh independent attempt will be checked, and whether a suitable 3-pax placement and subject arrangement are available.
Continue with the closest question
- Can “because” and “so” appear in the same sentence?
- Bukit Timah English guide to fragments and run-on sentences
- Use conjunctions and connectors precisely
Match support to the actual course
The examples are original teaching illustrations. The routines are practical educational guidance, not measured outcomes, grade promises or universal marking rules. Match every task to what has been taught and to the school’s instructions.
Source check: 11 October 2026. The SEC begins in 2027 and records subjects at their respective G1, G2 or G3 subject levels. Posting Groups and individual subject levels are not interchangeable. For examination preparation, confirm the actual subject, level, candidate type, examination year and syllabus before choosing materials.