Need Not, Dare, and Semi-Modals in Technical English
5 exercises — practise "need" and "dare" as semi-modal auxiliaries in technical requirements.
0 / 5 completed
1 / 5
Which sentence correctly uses "need" as a modal auxiliary (not a main verb) to state that an action is unnecessary?
"You need not restart the server after this config change" is the correct modal-auxiliary form: "need not" (or its contraction "needn't") is followed directly by the bare infinitive, with no "to". Option A uses "need" as an ordinary main verb with "don't" and "to", which is also grammatical but is a different pattern from the modal auxiliary being tested here. Option B incorrectly adds "to" after the modal "need not", mixing the main-verb and modal-auxiliary patterns. Option D incorrectly adds "to" after the contracted modal "needn't", the same error as option B.
2 / 5
Which sentence correctly uses "need" as an ordinary main verb (not a modal) in an affirmative statement?
"The pipeline needs a valid API key to authenticate" is correct: in affirmative statements, "need" functions only as an ordinary main verb (never as a modal auxiliary), so it takes the third-person singular "-s" and a direct object noun phrase. Option A incorrectly omits the required "-s" for third-person singular subject "the pipeline". Option C incorrectly inserts "to" before the noun phrase "a valid API key", which is ungrammatical since "need" here takes a direct object, not an infinitive. Option D incorrectly uses the gerund "needing" without an auxiliary, leaving the sentence without a finite verb.
3 / 5
Which question correctly uses "need" as a modal auxiliary, without "do"-support, to ask about a formal requirement?
"Need we submit a change request for this hotfix?" is the correct modal-auxiliary question form, formal and somewhat old-fashioned but grammatically standard: "Need" is inverted with the subject, with no "do"-support and no "to" before the bare infinitive. Option B incorrectly mixes "do"-support with the bare infinitive, producing a double-marked, ungrammatical question. Option C incorrectly adds "to" after the inverted modal "need". Option D, "Do we need to submit...?", is the standard, common main-verb question form and is also grammatical, but it is the alternative pattern, not the modal-auxiliary structure this question specifically tests.
4 / 5
Which sentence correctly uses "dare" as a semi-modal in a negative statement about questioning a critical production change?
"Nobody dared question the emergency rollback decision" correctly uses "dare" as a semi-modal in a negative-polarity context (triggered by "nobody"), taking the bare infinitive "question" with no "to" and no third-person "-s", even though the subject is singular. Option A uses "dare" as an ordinary main verb with "to", which is also grammatical but is the alternative main-verb pattern, not the semi-modal structure tested here. Option B incorrectly uses the bare present form "dare" instead of the past "dared" needed for this past-time narrative. Option D incorrectly adds the third-person "-s" to "dare", which a semi-modal does not take.
5 / 5
Which sentence correctly distinguishes "dare" as a main verb (with an object) from its semi-modal use?
"She dared him to deploy directly to production without a review" is correct: when "dare" takes a direct object ("him"), it functions as an ordinary transitive main verb meaning "challenge", and is followed by a to-infinitive, unlike the bare-infinitive semi-modal use seen in negative/question contexts without an object. Option B incorrectly omits "to" before "deploy", which is required in this transitive main-verb pattern. Option C incorrectly uses the bare present "dare" instead of the past "dared" for third-person singular "she" in a past narrative. Option D incorrectly uses the gerund "deploying" instead of the to-infinitive required after this pattern.