One clear grammar focus
The exercise states the structure and keeps every question connected to it.

Choose a grammar goal or real situation. Cashi creates level-appropriate examples, questions, and explanations instead of isolated rule drills.
Grammar becomes useful when you can recognize and produce it in a real message, conversation, or decision. Each exercise keeps the structure and context aligned.
The exercise states the structure and keeps every question connected to it.
See the target form inside an email, conversation, story, or practical decision.
Review why an answer works and what signal helps you choose it next time.
Instead of memorizing a rule alone, you see what the speaker or writer is trying to communicate and which form expresses it accurately.
Project risk: “If we delay the launch, we will lose the seasonal window.” → Why is the first conditional appropriate here?
Ask for a tense, conditional, article, modal, or a situation where you need better grammar.
Work with complete sentences rather than disconnected labels and definitions.
Use the explanation to recognize the same pattern in a new sentence.
A1-A2 focuses on high-frequency sentence patterns. B1-C2 adds contrast, register, nuance, and structures used in extended communication.
Yes. Ask for articles, tenses, conditionals, modals, clauses, or another structure you want to practice.
Yes. The target structure, vocabulary, and distractors are adjusted to the selected CEFR level.
Yes. After answering, you can review the correct option and why it fits the sentence and context.
Practice an email, application, paragraph, or essay around your own goal. Cashi adapts the task and feedback to your level.
Explore →Practice a realistic English email for your recipient and goal. Build it step by step or draft the full message, then revise with focused feedback.
Explore →Choose a subject and level. Practice useful words with meanings, examples, recall, and short games built around one coherent context.
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