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TOEIC Link Part 5 — comply with, adhere to, conform to: The Dependent-Preposition Map That Turns a Vocabulary Item Into a Grammar Item

Part 5 loves to blank the preposition after comply, adhere, and conform because the three verbs mean almost the same thing but each locks a different preposition. This guide gives you the fixed pairings — comply with, adhere to, conform to — explains why they are not interchangeable, exposes the distractor that offers a plausible-but-wrong preposition, and drills the workplace collocations that make the right choice automatic.

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All contractors must ____ with the safety regulations posted at the site entrance. The options offer comply, adhere, conform, and abide, and the blank is followed by with. Three of those four verbs mean essentially "follow the rules" — yet only one of them takes with, and that single fact decides the item. The answer is comply, and you do not choose it by meaning. You choose it because comply is the verb that pairs with with, while adhere and conform demand to. This is a dependent-preposition question, and it is one of the most common ways Part 5 disguises a grammar test as a vocabulary test.

The map: three near-synonyms, three fixed prepositions

These verbs are close enough in meaning that Part 5 can swap them freely in the answer options. What it cannot swap is the preposition each one governs. Memorize the pairings as fixed units, not as verbs plus a guessed particle.

  • comply with — follow a rule, request, or standard. The firm complied with the audit request. Products must comply with EU regulations.
  • adhere to — stick to a rule, plan, schedule, or principle. Staff must adhere to the dress code. We adhered to the original timeline.
  • conform to — match a standard, specification, or norm. The building conforms to fire codes. The report conforms to the required format.

So the test is mechanical: read the preposition in the sentence, then pick the verb that locks to it. If the blank is followed by with, the answer is comply. If it is followed by to, the answer is adhere or conform — and you decide between those two by whether the object is a rule you obey (adhere to) or a standard you match (conform to). The meaning barely moves; the preposition does all the work. This "let the fixed collocation, not the near-synonym meaning, assign the word" logic is the same discipline that settles responsible for versus in charge of, where the preposition-locked phrase decides the fit.

Why they are not interchangeable

Learners often assume that because the verbs are synonyms, any preposition will do. It will not — comply to, adhere with, and conform with are all either wrong or carry a different, less common meaning that Part 5 will not reward. The dependent preposition is part of the verb's fixed identity, the same way depend is welded to on and consist to of. When the test blanks the verb and shows you the preposition, it is handing you the answer if you have the pairings memorized — and handing a trap to anyone relying on meaning alone.

  • The device must ____ to international safety standards. → preposition to, object is a standard to match → conform
  • Employees are expected to ____ to the new remote-work policy. → preposition to, object is a rule to follow → adhere
  • The supplier failed to ____ with the delivery terms. → preposition with → comply

Notice the decision never required you to feel a difference in meaning. You read the preposition, then — if it was to — you split on rule-versus-standard. That two-question filter resolves every item in this family.

The distractor: the plausible wrong preposition

The trap in these items is rarely a wrong verb — it is the option that pairs a correct verb with the wrong preposition, or blanks the preposition itself and offers with, to, on, and for. When the preposition is blanked, the given verb tells you the answer:

  • The manufacturer must comply ____ the new emissions standard. → verb is comply → with, not to
  • All departments must adhere ____ the reporting schedule. → verb is adhere → to, not with

The tell: identify whichever element is given — verb or preposition — and let it force the blank. Never pick a preposition because it "sounds acceptable"; each verb licenses exactly one. This "the given half of the collocation dictates the missing half" mechanic is the same thing that decides tighter preposition contrasts like among versus between, where the structure fixes the choice before meaning.

The workplace collocations to lock in

Part 5 draws these items from a narrow band of business contexts. Drilling the exact phrases makes the pairing automatic under time pressure.

  • comply with: regulations, requirements, a request, the law, standards, a policy, guidelines
  • adhere to: a schedule, a policy, guidelines, the terms, a plan, principles, a code of conduct
  • conform to: standards, specifications, a format, codes, norms, requirements

Note that guidelines, requirements, and policy can follow more than one verb — which is exactly why the test relies on the preposition, not the object, to make the item solvable. Read the particle first, match the verb to it, and split to on rule-versus-standard. Do that and this whole family of items becomes three fixed pairings you recognize on sight rather than three synonyms you agonize over.