Therefore means for that reason and signals a conclusion based on what came before.
The idea
Use a separate sentence, a semicolon, or a suitable conjunction: The room is unavailable; therefore, we need another place. It can also follow an auxiliary: may therefore need checking.
Examples
- The room is unavailable; therefore, we need another place.
- The road is closed, and therefore the bus takes a different route.
- The shop opens at ten. Therefore, we cannot enter at nine.
- The team found an error and therefore revised the plan.
- The tickets sold out; therefore, they chose another date.
- The map is old; the route may therefore need checking.
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Watch out
Therefore signals the writer’s reasoning; the connection still needs evidence and does not automatically make the conclusion true.
Try it yourself
Choose the connector for the stated consequence. The room is unavailable; ___, we need another place. (therefore / nevertheless)
Show answer or example answer
therefore
Therefore introduces the consequence of the room being unavailable.
Choose the punctuation separating the complete clauses. Which mark can separate complete clauses before therefore? (semicolon / comma)
Show answer or example answer
semicolon
A semicolon can separate the clauses before therefore.
Choose what the word alone establishes about the conclusion. A sentence uses therefore. Its conclusion is ___. (not automatically proven / automatically proven)
Show answer or example answer
not automatically proven
The word signals reasoning but does not prove its conclusion.
Practice round
Answer questions and rebuild English sentences to practise. Your score is shown.
Choose the connector for the stated consequence. The room is unavailable; ___, we need another place. (therefore / nevertheless)
Choose the punctuation separating the complete clauses. Which mark can separate complete clauses before therefore? (semicolon / comma)
Choose what the word alone establishes about the conclusion. A sentence uses therefore. Its conclusion is ___. (not automatically proven / automatically proven)
Tap the words in the right order.
Tap the words in the right order.
Keep your progress
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Give a reason and a conclusion linked with therefore.

