Standard English Conventions
Every case file holds one sentence with exactly one mistake. Find it, fix it, and keep the streak going.
Spot the error
Tap the word or phrase that is wrong. A wrong tap costs 3 seconds.
Stamp the fix
Three fixes appear. Pick the one that makes the sentence correct. A wrong fix costs a life.
Keep the streak
The clock starts at 15 seconds and tightens to 8. Solves in a row raise the multiplier.
Subject–verb
“The collection of coins were…”
23 cases
Pronouns
“Between you and I…”
16 cases
Apostrophes
“The museum extended it's hours”
20 cases
Verb tense
“Yesterday the mayor announces…”
23 cases
Punctuation
“The panel included a chemist a geologist”
24 cases
Comma splices
“Bats are not blind, they rely on…”
20 cases
Modifiers
“Walking along the beach, the lighthouse…”
16 cases
Word choice
“The policy will effect every department”
24 cases