English Skill Nest
● Free Grammar Quiz
The Grammar Challenge
The Grammar Challenge
Most Learners Quietly Fail
Twenty questions built around the four places English really goes wrong: tense sequence, reported-speech shifts, passive forms and conditional structures. Every answer is graded instantly and explained — so you finish knowing exactly what to fix.
20 questions
Instant explanation per answer
Free certificate
No sign-up
Answer honestly — the questions are designed so that confident guessing costs you marks.
⏳
Tenses
Perfect vs past, sequence of tenses, used to, future perfect, and the traps behind “since”.
5 questions
🗣️
Reported Speech
Backshift, indirect questions, reported commands, time shifts and the cases where nothing changes.
5 questions
🔁
Active & Passive
Modals, phrasal verbs, perfect forms and object-to-subject turns — without changing the tense.
4 questions
➗
Conditionals
Second and third forms, mixed conditionals, inversion (Had we known…), unless and but for.
6 questions