Negative Purpose: "So As Not To" / "In Order Not To" in Technical English
5 exercises — practise negative purpose infinitives "so as not to" and "in order not to".
0 / 5 completed
1 / 5
Which sentence correctly uses "so as not to" to express a negative purpose?
"We debounce the input handler so as not to trigger the API on every keystroke" is correct: in the fixed phrase, "not" goes directly before "to", giving "so as not to + verb". Option B reorders "not" after "to", which is a common but nonstandard placement in this specific fixed phrase. Option C drops "to" entirely. Option D moves "not" to the front, reversing the intended meaning.
2 / 5
Choose the sentence that correctly uses "in order not to" as an alternative, more explicit negative purpose phrase.
"The service caches the token in order not to re-authenticate on every request" is correct: "not" precedes "to" in this fixed formal phrase. Option B places "not" after "to", a widely seen but less standard order for this phrase. Option C omits "to" before the base verb. Option D moves "not" to negate the whole phrase, which distorts the intended meaning.
3 / 5
Select the sentence that correctly distinguishes negative purpose ("so as not to break") from simply negating the main clause verb.
"We wrapped the call in a try/catch so as not to crash the whole process on one failed request" is correct: the main clause is affirmative (we did wrap it), and the negative purpose clause explains why (to avoid crashing). Option B wrongly negates the main clause instead, reversing the meaning. Option C scrambles the word order inside the purpose clause. Option D moves "not" outside the purpose phrase, changing what's being negated.
4 / 5
Which sentence correctly uses negative purpose in a code comment explaining a defensive check?
"Validate the payload size first, so as not to allocate an oversized buffer" is correct: "not" sits directly before "to" in the fixed phrase. Option B adds a redundant "in order" and moves "not" after "to". Option C incorrectly reorders "not" and "as". Option D drops "to" before the base verb.
5 / 5
Choose the sentence that correctly uses "so as not to" rather than the simpler but stylistically different "to avoid + gerund" in a formal spec, while keeping the meaning equivalent.
"...so as not to synchronize retries across clients" is correct: the base verb "synchronize" follows "not to" directly, and the parenthetical correctly shows the paraphrase with "avoid" + gerund. Option B garbles "avoid" and "not" together ungrammatically. Option C mixes "avoid to" (wrong pattern for "avoid", which needs a gerund) with a dangling "so as not". Option D incorrectly uses the gerund "synchronizing" after "not to", which requires the base form.