English Grammar Trainer

Deb Mobile

In-app purchases

About this app

Learn to use English grammar accurately and confidently.
Instead of choosing answers or tapping word tiles, you translate full sentences and practice grammar in context.
10,000+ exercises across 35+ grammar topics.
How it works:
1. Choose the grammar topics you want to practice, such as Tenses, Conditionals, Modals, Reported Speech, or Conjunctions.
2. Get sentences in your language based on the rules you selected.
3. Translate each sentence into English.
4. Speak your answer aloud or type it.
5. Use hints when you do not know a word.
6. AI checks your translation and takes synonyms and valid word order variations into account.
7. If you make a mistake, the app explains what went wrong and suggests a better version.
8. Open grammar explanations with examples whenever you need a quick reminder.
9. Exercise difficulty adapts to your level.
10. Practice a little every day until using the rule starts to feel automatic.

Why this works:
Many grammar exercises ask you to choose one answer from a list or build a sentence by tapping words into place. That can be useful, but it gives you a lot of clues.

With English Grammar Trainer AI, you produce the full sentence yourself. You learn to recognize which grammar rule is needed and use it without prompts — closer to real speaking and writing.

English Grammar Trainer AI is useful if you:
• study with a teacher and want to review grammar between lessons;
• know the rules but get confused when you need to use them;
• have learned vocabulary but struggle to build full sentences;
• want to focus only on the topics you actually need;
• are preparing for an exam or want to strengthen your weak spots.

Main features:
• Full-sentence translation practice
• Voice answers and keyboard input
• AI feedback with mistake explanations
• Word hints when you need them
• Rule explanations with examples
• Adaptive exercise difficulty
• Focused practice by grammar topic
• Suitable for A1, A2, B1, and B2 learners

Free and Premium:
• The free mode includes core grammar topics and up to 10 exercises a day.
• Premium unlocks all grammar topics and removes the daily limit.

Available practice topics:

Tenses:
• Future Simple
• Present Simple
• Present Perfect
• Present Continuous
• Past Simple
• Past Perfect
• Past Continuous
• Past Perfect Continuous
• Present Perfect Continuous
• Future Continuous
• Future Perfect
• Future Perfect Continuous
• Be going to

Adjectives and Adverbs:
• Superlatives
• Comparatives
• Adverbs
• Adverbs of Frequency

Conditionals:
• Zero Conditional
• First Conditional
• Second Conditional
• Third Conditional

Pronouns and Quantifiers:
• Something, Anything, Nothing, etc.
• Quantifiers
• Demonstrative Pronouns
• Possessive 's
• Possessives
• Pronouns

Sentence Structures:
• Relative Clauses
• Conjunctions
• Reported Speech
• There is / There are
• There was / There were

Verb Patterns:
• Used to
• To be used to
• To get used to

Modal Verbs:
• Should / Shouldn't
• May / Might + Infinitive
• Modal Verbs
• Can / Can't
• Speculation and Deduction

Nouns and Articles:
• Countable and Uncountable
• Singular and Plural Nouns
• Uncountable and Plural

Choose a topic, translate full sentences, get AI feedback, and learn to use English grammar in real context.

What's new

Bug fixes