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TOEFL Grammar: Questions and everyday word order

10 easy-level rules, each shown with a correct sentence, the mistake learners most often make instead, and the TOEFL tasks where it counts.

Test Ninjas Research · Updated October 1, 2026

Questions turn normal word order around, and a few everyday patterns — there is, adjective before noun, at for clock times — have to be learned as units. Question order is a natural thing for Build a Sentence to check, and emails often need a well-formed direct question.

Part of the TOEFL grammar guide: 120 rules in 12 topics. The cards are original teaching material checked against the linked references; they are not an ETS syllabus.

The rules

1. Be in direct questions

Move be before the subject in a neutral yes-or-no question; do not add do.

Correct
Is the printer working?
Common trap · incorrect
Does the printer is working?

What goes wrong: the trap uses “Does is” where the correct sentence has “Is”, so it no longer follows the rule.

Matters for: Build a Sentence · Write an Email · Take an Interview

Source: Questions: yes-no questions

2. Do with lexical verbs

Use do or does to form a simple-present question with an ordinary main verb.

Correct
Do the students need help?
Common trap · incorrect
Are the students need help?

What goes wrong: the trap uses “Are” where the correct sentence has “Do”, so it no longer follows the rule.

Matters for: Build a Sentence · Write an Email · Take an Interview

Source: Questions: yes-no questions

3. Question-word order

When a direct question asks about something other than the subject, place the question word before the auxiliary and subject.

Correct
Where does the lecture begin?
Common trap · incorrect
Where the lecture does begin?

What goes wrong: the trap uses the same words in a different order, so it no longer follows the rule.

Matters for: Build a Sentence · Write an Email · Take an Interview

Source: Questions: wh-questions

6. There is and there are

In formal writing, make be agree with the noun after existential there.

Correct
There are two seats left.
Common trap · incorrect
There is two seats left.

What goes wrong: the trap uses “is” where the correct sentence has “are”, so it no longer follows the rule.

Matters for: Build a Sentence · Write an Email · Take an Interview

Source: There is, there's and there are

7. Adjective before noun

A simple descriptive adjective usually appears before the noun it modifies.

Correct
It was a helpful session.
Common trap · incorrect
It was a session helpful.

What goes wrong: the trap uses the same words in a different order, so it no longer follows the rule.

Matters for: Build a Sentence · Write an Email · Take an Interview

Source: Adjective phrases: position

8. Adverb for manner

Use an adverb when describing how an action is done.

Correct
She answered politely.
Common trap · incorrect
She answered polite.

What goes wrong: the trap uses “polite” where the correct sentence has “politely”, so it no longer follows the rule.

Matters for: Build a Sentence · Write an Email · Take an Interview

Source: Adverb phrases

10. At for clock time

Use at before a precise clock time such as noon or six o'clock.

Correct
The meeting starts at noon.
Common trap · incorrect
The meeting starts on noon.

What goes wrong: the trap uses “on” where the correct sentence has “at”, so it no longer follows the rule.

Matters for: Build a Sentence · Write an Email · Take an Interview

Source: At

Other grammar topics

Frequently Asked Questions

No task names grammar topics, but these rules matter most in Build a Sentence, Write an Email, Take an Interview. Build a Sentence rewards correct word order and forms directly; in emails, discussion posts and spoken answers, errors here make your meaning harder to follow.

No. ETS does not publish a grammar syllabus. These are original Test Ninjas teaching cards based on standard English usage, with links to the reference pages each rule was checked against.

Read the rule, then cover the correct sentence and try to fix the trap yourself. Next, write one new sentence of your own that follows the rule, ideally about a campus or class situation.

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