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Complement Quiz

Complement Quiz - Free Identify Direct Test - FreudlyTake a free complement quiz to explore your complement knowledge and discover your results. Quick, no sign-up needed. Start now!en
In about 10 minutes, the complement quiz guides you through 16 questions on how words, phrases and clauses complete meaning in sentences. Your result gives an overall indication of complement knowledge, reflecting how well you recognize patterns, distinguish functions and analyze sentence structures.
Questions: 1610 minutes
Complement Quiz: sample question card
July 22, 2026July 22, 2026Material has been updatedJuly 22, 2026Material has been published
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692 completions
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Daniel HallPsychologist · Test reviewer
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Scale Explorer

How the Scales are Structured

Complement KnowledgeCK
Measures how accurately you can identify and classify required complements in English sentences (objects, complements, and complement clauses) versus optional modifiers.
example score7/16
7/16Developing commandexample score
0 – 6Foundations to strengthen
7 – 12Developing command
13 – 16Strong command
A score of 7 indicates developing command, meaning you can spot many common complements but may still mix up types such as direct vs. indirect objects or complement clauses in trickier sentences.
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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Students in grammar classes
44%OF USERS
Middle school through college students use it to practice identifying objects and complements before quizzes, exams, or essays.
English teachers and tutors
33%OF USERS
Instructors take it to check their own explanations and find common complement vs modifier pitfalls to address in lessons.
ESL learners and writers
23%OF USERS
Language learners and people polishing their writing use it to strengthen sentence analysis and avoid errors with required complements.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
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Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Shaded area — where most people score
Dot — the average
You — your score lands on each curve after the test— your score, after the test
Complement KnowledgeCK
You?
Average5.4
Typical rangeTypical2.6 – 8.1
Possible0 – 16
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SAMPLE QUESTIONS

Example Questions From the Test

    • After the vote
    • Jordan
    • became
    • captain
    • Rina
    • is proud
    • of her progress
    • her progress
    • slippery
    • The storm
    • the roads
    • made
WHAT THE TEST MEASURES

Complement Quiz - Description and methodology of the test

Readers who want a clearer grasp of sentence structure can use the complement quiz to examine how English expressions complete one another. As an English grammar assessment, it suits learners, teachers, and anyone checking whether a grammar explanation matches actual usage. The result gives an overall indication of command, with broad guidance for further study rather than a detailed profile of individual grammar distinctions.

What This Assessment Explores

The assessment focuses on complement relationships: words, phrases, or clauses whose presence completes meaning licensed by another expression. Items ask readers to separate required complements from optional modifiers and identify a selected element’s function in a sentence.

The main themes are:

  • Subject and object complements show how a phrase identifies or describes a subject or object.
  • Direct and indirect objects show how participants connect to verbs such as prepare, mail, or show.
  • Complements of adjectives, nouns, and verbs show how dependent phrases or clauses complete expressions such as proud, fact, hope, or believe.

Because these are complement grammar questions, sentence context matters: the task tests grammatical function rather than word recognition. The reported scale is Complement Knowledge (0-16): Foundations to strengthen (0-6), Developing command (7-12), and Strong command (13-16).

Methodology and Evidence Base

In this complement grammar test, each item presents a sentence or definition and asks the reader to identify a grammatical role. Four answer choices separate the target from alternatives such as a modifier, direct object, or subject complement. One question uses a passive transformation to support the analysis.

The questionnaire reports one displayed overall result, interpreted through the three catalogue-defined bands.

Its framework is conceptually consistent with Huddleston and Pullum (2002), whose account distinguishes complements from optional modifiers and relates them to verbs, adjectives, nouns, and clauses. The later student grammar text by Huddleston, Pullum, and Reynolds offers a complementary explanatory reference. These sources support the terminology and reasoning, but the online questionnaire is not presented as an adaptation or validation of either work.

As an English grammar complement test, it gives learners a focused snapshot of performance on these items. Because the result reflects performance on these items, it should be read as a focused grammar snapshot rather than a complete measure of English proficiency.

Literature:
  • Huddleston, Rodney, and Geoffrey K. Pullum. The Cambridge Grammar of the English Language. Cambridge University Press, 2002. 10.1017/9781316423530.
  • Huddleston, Rodney, Geoffrey K. Pullum, and Brett Reynolds. A Student's Introduction to English Grammar. 2nd ed. Cambridge University Press, 2022. 10.1017/9781009085748.

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