TOEIC Decision Point

TOEIC Trap: Doing vs To Do

TOEIC often tests whether the word after a business action should be doing or to do. The answer usually comes from the word just before the blank.

Look at these examples:

The manager agreed to review the proposal.

The manager suggested reviewing the proposal.

The team is responsible for reviewing the proposal.

The meaning is similar, but the pattern is different. TOEIC checks whether you notice the signal before the blank.

Core TOEIC rule: Do not choose by meaning alone. Check the word before the blank: some signals point to to do, some point to doing.

The 7-second choice

First, find the signal before the blank. Then choose the form that naturally follows it.

Plan / decide / agree / expect

The company plans ___ a new branch.

Answer: to open

Avoid / consider / finish / suggest

The team suggested ___ the schedule.

Answer: revising

Preposition signal

The team is responsible for ___ the report.

Answer: preparing

Purpose signal

The technician came ___ the equipment.

Answer: to inspect

Signals that often point to to do

TOEIC business sentences often use to do after words about plans, decisions, promises, expectations, or purpose.

plan to: The company plans to expand its services next year.

decide to: The committee decided to postpone the event.

agree to: The supplier agreed to replace the damaged parts.

expect to: The team expects to finish the project by Friday.

purpose: The technician visited the site to inspect the equipment.

Signals that often point to doing

Other TOEIC signals naturally lead into doing. These are common in workplace rules, recommendations, and process descriptions.

avoid: Employees should avoid storing personal files on office computers.

consider: The company is considering opening a new branch.

finish: The technician finished installing the software.

suggest: The consultant suggested revising the schedule.

recommend: The manager recommended updating the manual.

After a preposition, doing is usually the safe signal

TOEIC often hides the answer after words like for, of, in, about, and to. In these patterns, the next action is often doing.

The assistant is responsible for arranging the meeting room.

For points to arranging.

The team is interested in testing the new system.

In points to testing.

We look forward to seeing you at the conference.

This is a common TOEIC trap. The “to” in “look forward to” is followed by doing.

TOEIC warning: Not every to is followed by the base action. In look forward to, the safe pattern is look forward to doing.

Purpose uses to do

If the sentence explains why someone did something, to do often shows the purpose.

The technician visited the office to repair the printer.

Why did the technician visit? To repair the printer.

The manager called the supplier to confirm the delivery date.

Why did the manager call? To confirm the date.

Small meaning changes: stop doing vs stop to do

TOEIC can also test short meaning changes. One useful pair is stop doing and stop to do.

The workers stopped using the old equipment.

They no longer used the old equipment.

The workers stopped to check the equipment.

They paused another action in order to check the equipment.

Watch it in TOEIC business sentences

The company decided to introduce a new online ordering system.

Decided points to to introduce.

The manager avoided discussing confidential information in the meeting.

Avoided points to discussing.

The staff members are responsible for checking the inventory each morning.

For points to checking.

The consultant came to evaluate the training program.

To evaluate explains the purpose of coming.

Quick TOEIC check

Choose the best answer. Look at the signal before the blank first.

1. The manager agreed ___ the proposal by Friday.
2. Employees should avoid ___ personal files on office computers.
3. We look forward to ___ you at the conference.
4. The maintenance team is responsible for ___ the equipment.
5. The company plans ___ a new branch next year.
6. The consultant suggested ___ the schedule.

Fast-reader mistake

Fast readers often choose by meaning: both reviewing and to review feel close. But TOEIC is testing the signal before the blank.

Do not ask only: Does the meaning make sense?

Ask instead: What word or phrase comes before the blank?

Why this mistake returns under pressure

Doing vs to do questions feel familiar, so test-takers often answer by instinct. Under time pressure, that instinct can be unreliable.

The safer TOEIC move is to memorise the decision signals, not long grammar explanations. After avoid, consider, finish, and suggest, expect doing. After plan, decide, agree, and expect, expect to do.

One-second tool: Plan / decide / agree / expect = to do. Avoid / consider / finish / suggest = doing. After for / in / about / look forward to = often doing. Purpose = often to do.

Final takeaway

TOEIC doing vs to do questions are not random. They are nearby-signal questions.

Check before the blank

The word before the blank usually controls the answer.

Watch prepositions

For, in, about, and look forward to often point to doing.

Watch purpose

If the action explains why someone did something, to do may fit.

Do not translate first

The Japanese meaning may be similar, but the English pattern decides the answer.

Find the signal, match the pattern, and move on.

Use small TOEIC mistakes as a diagnostic

If you understand the meaning but still miss doing vs to do questions, the issue may be sentence-pattern recognition under time pressure.

The TOEIC Learning Block Diagnostic helps you notice whether your main issue is speed, overthinking, translation, passive listening, memorisation, or burnout.

Take the TOEIC Learning Block Diagnostic Find a TOEIC study plan

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For more TOEIC Part 5 nearby-signal traps, continue with these related decision pages.

Part 5 Phrasal Verbs: use the business action signal Relative Clauses: find the word being described Back to top TOEIC Strategy Library TOEIC Learning Block Diagnostic TOEIC Plan Finder
🔍 EN FAQ: Doing vs To Do What’s the difference between “doing” and “to do”? “Doing” is usually a gerund (-ing noun), “to do” is an infinitive. The verb before determines which one is correct. Should I say “I enjoy working” or “I enjoy to work”? Say “I enjoy working.” “Enjoy” is always followed by the -ing form. Is it correct to say “I decided doing it”? No. Use “I decided to do it.” “Decide” is always followed by “to + verb.” Which is correct: “They suggested meeting” or “They suggested to meet”? “Suggested meeting” is correct. “Suggest” takes the -ing form, not “to do.” Why is “want doing” incorrect? “Want” is always followed by “to + verb.” The correct form is “want to do.” What comes after “plan” — to do or doing? Use “to do.” Example: “They plan to launch the service.” Can I say “He stopped to smoke” and “He stopped smoking”? Yes, both are correct but have different meanings. One means to pause, the other means to quit. What does “remember doing” mean? It means you have a memory of the past action. Example: “I remember meeting her.” When do I use “remember to do” instead? Use “remember to do” when you need to remind yourself to do something. Example: “Remember to call him.” Does “try doing” mean the same as “try to do”? No. “Try doing” means experiment with something. “Try to do” means make an effort. What follows a preposition — doing or to do? Always use the -ing form after a preposition. Example: “She’s interested in working here.” Is “She’s good at to speak English” correct? No. It should be “She’s good at speaking English.” Can both “to do” and “doing” be correct after a verb? Yes, but it depends on the verb. Example: “start doing” and “start to do” are often both OK. What’s the pattern after “ask”? Use “ask + person + to do.” Example: “They asked me to help.” What’s wrong with “They asked to help”? It’s missing the object. Correct version: “They asked me to help.” What does “stop doing” mean? It means to quit a habit or activity. Example: “He stopped drinking coffee.” How can I tell which verbs take “doing”? Some verbs just always take -ing: enjoy, avoid, consider, finish, suggest. How can I tell which verbs take “to do”? Memorize common ones: want, hope, plan, offer, expect, decide. What’s the structure for “encourage”? Use “encourage + person + to do.” Example: “She encouraged me to try again.” How can I learn which pattern to use in TOEIC? Focus on high-frequency verb patterns. Learn which verbs take doing, which take to do, and which need an object.