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A grammar quiz app that tests you on your own English notes

Upload a PDF, slide deck or photo of a worksheet and get multiple-choice, true/false or short answer questions with an explanation for every answer.

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Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free account · 3 sets a month · Creates quizzes in seconds

Why practice with your own grammar notes works better

Grammar rules feel obvious on a worksheet and fall apart in a timed exam. An English grammar quiz app that builds questions from your own class notes keeps practice tied to the exact rules your teacher covers, such as subject-verb agreement, verb tense and comma placement.

Subject-verb agreement and pronoun reference
Verb tenses, including perfect and conditional forms
Punctuation rules such as commas, apostrophes and semicolons
Students get 40% off Plus with a school email

Example English grammar quiz questions

Which sentence uses correct subject-verb agreement? A) The list of items are on the desk. B) The list of items is on the desk.B. The subject is 'list', which is singular, so the verb must be 'is'; 'items' sits inside a prepositional phrase and does not set the verb.

Which is correct? 'If I _____ rich, I would travel.' (were / was)were. In unreal conditionals after 'if', standard grammar uses 'were' for all persons.

True or false: a semicolon can join two independent clauses.True. A semicolon links two closely related independent clauses without a coordinating conjunction.

Fill in the blank: 'Neither the teacher nor the students _____ ready.' (is / are)are. With 'neither...nor', the verb agrees with the nearer subject, 'students', which is plural.

Which sentence has correct comma placement? A) Before leaving, the class cleaned up. B) Before, leaving the class cleaned up.A. An introductory phrase is followed by a comma before the main clause.

Generate the full set

Questions from your material

Upload PDFs, DOCX, PPTX, plain text or photos of pages and get grammar questions drawn from what you actually studied.

Explanations for every answer

Each question comes with an explanation, so a wrong answer shows you which grammar rule you broke.

Flashcards for the rules you miss

Turn missed rules into flashcards with spaced repetition so comma and tense rules return before the exam.

How it works

Upload your grammar material

Add a PDF, DOCX, PPTX, text file or a photo of a handout. No credit card is needed to start.

Choose the question type

Pick multiple choice, true/false or short answer and generate a quiz from your own material.

Answer, read, then repeat

Check each answer, read why it is right or wrong, then retake the questions you missed.

DeckOwl reads PDFs, DOCX and PPTX files, plus photos of pages through text recognition, then writes multiple-choice, true/false or short answer questions. Each answer includes an explanation, so you learn the rule behind the mistake instead of memorizing a single answer.

The free plan includes 3 generations per month and studying in the browser. Plus, at $99.90/year or $9.99/month, adds unlimited generations, spaced repetition and PDF, DOCX, Anki and CSV export.

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Frequently asked questions

How should I split up grammar practice before a test?

Short sessions of a few focused questions, repeated over several days, usually work better than one long cram. Review each explanation before moving on to the next set.

Which grammar topics should I focus on first?

Start with the rules your syllabus names most often, such as subject-verb agreement, tense consistency and comma use. Then practice short answer questions on them, because producing a correct sentence is harder than spotting one.

Can I export my grammar quizzes?

Exports are paid features. Plus includes PDF, DOCX, Anki and CSV export, and Pro adds QTI 2.1 and Moodle XML export.

Is there a free plan?

Yes. The free plan includes 3 generations per month and studying in the browser, and you do not need a credit card to start.

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