Keentune
Adaptive skill practice — find your level, get sharper.

Grammar practice

Write and speak with cleaner grammar
Practice the rules that matter — subject–verb agreement, tense, pronouns, modifiers, and the subjunctive — with clear explanations. Difficulty scales from everyday fixes to subtle constructions.
• Meets you at your level — never too easy, never too hard.
• Adapts every question to how you’re doing.
• Tracks your level over time. Skill practice, not a test.
New here? Read the Grammar guide
A free 14-minute primer — the mental model, the mistakes beginners make, and what to practise first.
Curriculum
204 concepts across 9 chapters, from foundations through advanced practice — each one a concept the adaptive question bank can teach and test.
A. Subject–verb agreement
26
B. Pronouns: case, agreement, and reference
25
C. Verbs: tense, aspect, mood, and voice
30
D. Modifiers and modifier faults
25
E. Parallelism, comparison, and coordination
20
F. Punctuation
35
G. Sentence structure and sentence faults
20
H. Articles, prepositions, and determiners
20
I. Commonly confused words
3
View the full curriculum →
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