TOEIC Link Prepositions: The 22-Preposition System That Decides Part 5 and Part 6

Open the answer key of any released TOEIC Link form and count the preposition items in Reading Part 5 and Part 6. The number sits between 8 and 14 across our analyzed sample, which is more than verb-tense items, more than article items, and more than relative-clause items. Prepositions are the single most-tested grammar category on the test, and yet most learners study them as a vague afterthought rather than as a structured system.

This article is the focused 22-preposition working set that drives Part 5 and Part 6 preposition item performance. It is organized by semantic role — time, place, direction, agent, instrument, possession, and fixed collocation — because that is how ETS writes the items. Memorizing prepositions in semantic groups gives you a decision tree that maps directly onto the answer choices.

Why prepositions are overweighted on TOEIC Link

Three structural reasons keep this category heavy on every test.

Reason 1 — prepositions are short, frequent, and easy to test. Each Part 5 item is a single sentence with one blank. Prepositions fit perfectly because they are exactly one word, the four answer choices are minimal-pair distractors, and the grammar context can be constructed in 15 to 20 words.

Reason 2 — preposition errors signal CEFR band. A B1 candidate confuses in and on with time expressions. A B2 candidate gets in, on, and at right but stumbles on by, with, through, under. ETS uses preposition items specifically to discriminate between adjacent CEFR bands, which is why they show up so densely in the score-band-defining region of the test.

Reason 3 — Japanese learners systematically transfer L1 patterns. Japanese particles (に, で, から, まで) map onto English prepositions in ways that are wrong roughly half the time. ETS knows this and writes distractors that exploit the most common transfer errors. Mastering the preposition system shuts down the highest-volume error type for Japanese candidates.

This is also why our TOEIC Link from 20 to 25 roadmap places prepositions ahead of verb tenses in the grammar sequence. The score-band lift from prepositions is larger because the item count is larger.

The 22-preposition working set, organized by semantic role

The set below is the minimum vocabulary for handling the full preposition surface of TOEIC Link. It is organized by what the preposition does semantically, not alphabetically.

Role 1 — time (4 prepositions)

Time prepositions are the highest-volume preposition error category for Japanese learners.

At — clock times and specific moments. At 9 a.m., at noon, at the end of the meeting, at the beginning of the quarter.
On — days and dates. On Monday, on July 15, on the anniversary of the launch.
In — months, seasons, years, and durations. In March, in the summer, in 2026, in three weeks.
By — deadlines (no later than). Submit the report by Friday, by the end of the quarter.

The most-tested distractor pattern in this role is by vs until. By means deadline. Until means continuous activity up to a point. Submit by Friday vs Wait until Friday. ETS hits this distinction in roughly one preposition item per form.

Role 2 — place (3 prepositions)

Place prepositions are the second-highest-volume role.

At — specific points and addresses. At the office, at 1234 Main Street, at the conference.
On — surfaces and lines. On the desk, on the second floor, on the wall.
In — enclosed spaces and areas. In the meeting room, in Tokyo, in the building.

The most-tested distractor pattern in this role is at vs in for cities and venues. In Tokyo describes the city. At the Tokyo office describes a specific location. Conference in Tokyo vs conference at the Hilton. ETS uses this distinction repeatedly.

Role 3 — direction and movement (3 prepositions)

Direction prepositions appear in shipping, logistics, and travel passages.

To — destination. Send the package to the warehouse, travel to Seoul.
From — origin. The shipment from the supplier, email from the client.
Through — passage and process. Apply through the portal, approval through HR.

Role 4 — agent and instrument (3 prepositions)

These prepositions identify who performs an action or what tool is used.

By — agent of a passive verb. The contract was signed by the CEO, the report was prepared by the finance team.
With — instrument or accompaniment. Sign the contract with a digital signature, meet with the client.
Through — channel or method. Submit through the portal, process through the system.

The by vs with distinction is one of the most-tested at the upper-intermediate band. The document was reviewed by the manager identifies the reviewer. Review the document with care identifies the manner. ETS swaps these to create high-quality distractors.

Role 5 — possession and association (3 prepositions)

These prepositions describe ownership and relationship.

Of — possession and content. The president of the company, a copy of the report.
For — beneficiary and purpose. The package for Mr. Tanaka, a budget for marketing.
About — subject matter. A report about the merger, a meeting about Q3 results.

Role 6 — fixed prepositional phrases (4 prepositions)

These appear as memorized fixed phrases rather than compositional choices.

Under — under construction, under review, under warranty, under consideration.
In — in advance, in person, in writing, in addition to, in spite of.
On — on time, on schedule, on behalf of, on the basis of.
At — at no charge, at one's earliest convenience, at the latest.

The full TOEIC Link fixed-phrase preposition list runs to roughly 40 items. Memorize these as units, not as compositional pieces. Item-writers explicitly target the unit because it is impossible to derive from grammar rules alone.

Role 7 — verb-preposition collocations (2 prepositions)

These are tested as part of the verb's argument structure.

For — apply for a position, wait for a response, account for the difference, pay for the service.
On — depend on a vendor, focus on the priority, comment on the proposal, decide on the candidate.

A meaningful share of Part 5 preposition items is actually a verb-collocation item in disguise — the test wants you to know which preposition the verb selects.

The seven preposition traps ETS reuses every form

After analyzing released TOEIC Link forms, seven specific traps appear repeatedly. Recognize them on sight.

Trap 1 — by vs until for deadlines. Submit by Friday (deadline) vs Wait until Friday (continuous activity). The item context will give a verb that selects one or the other.

Trap 2 — in vs at for venues. In Tokyo (broad area) vs at the Tokyo office (specific point). The item context will signal which scope.

Trap 3 — on vs at for time. On Monday morning (specific day) vs at 9 a.m. (specific clock time). Items often combine to test both.

Trap 4 — by vs with for agent vs instrument. Reviewed by the manager (agent) vs reviewed with care (manner). Passive verb structure should signal by.

Trap 5 — from vs since for time origin. Working here from 2020 to 2024 (range) vs Working here since 2020 (continuing). Tense selects the right preposition.

Trap 6 — among vs between for groups. Between two parties (exactly two) vs among the three departments (three or more). Item context provides the count.

Trap 7 — besides vs beside for meaning. Besides the report, also send the slides (in addition to) vs Beside the entrance (next to). One letter difference, opposite meanings.

ETS rotates through these seven traps and we find at least three of them on every form analyzed.

How to study prepositions efficiently

The mistake most learners make is to memorize a 200-item preposition list flat. Three techniques work better.

Technique 1 — drill the 22-preposition working set first. The full English preposition inventory is over 100 items, but TOEIC Link uses 22 of them for 90% of test surface. Master the 22 first, then expand only if you reach the 30+ band.

Technique 2 — drill verb-preposition collocations as units. Apply for, depend on, account for, consist of — memorize the verb with its preposition. Never learn the verb in isolation. Our reading strategies by question type guide covers how to spot Part 5 verb-collocation items in under five seconds.

Technique 3 — read corporate emails for daily exposure. Office English uses prepositions densely. Subscribing to a corporate newsletter and reading it actively, paying attention to every preposition choice, builds intuition faster than dedicated drilling.

Common pitfalls when learning prepositions

Two pitfalls are the most expensive.

Pitfall 1 — relying on Japanese particle mapping. Japanese に does not map cleanly to English to, at, or in — the right preposition depends on English semantic role, not Japanese particle. Force yourself to think in English semantic categories (time, place, agent, instrument) and ignore the Japanese particle entirely.

Pitfall 2 — assuming prepositions are compositional. Many TOEIC Link preposition items test fixed phrases that have no compositional logic. On schedule is fixed. In schedule is wrong even though the meaning seems similar. Memorize fixed phrases as units rather than trying to derive them.

What to study next

After mastering prepositions, the next-highest-leverage grammar category is conditionals and modal verbs. These are tested at lower volume than prepositions but at higher difficulty, making them the next-band lever.

If you are still in the 15-to-20 score band, work through our TOEIC Link from 15 to 20 roadmap before tackling the full preposition cluster. The roadmap sequences grammar acquisition correctly so each category builds on the previous one.

Mastering the 22-preposition working set is a 20-to-30-hour commitment if you drill collocations and read corporate English daily. The score impact is direct — preposition items account for 8 to 14 points across Part 5 and Part 6 on every form, and a well-prepared candidate should expect to convert nearly all of them.