ESL Grammar Practice Generator

Three grammar habits quietly separate near-fluent English from fluent English, and none of them show up as a single memorizable rule. Articles trip up any learner whose first language has no equivalent system at all, Russian, Japanese, and Polish among them mark specificity through word order or context instead, so "I bought car" versus "I bought a car" versus "I bought the car" all sound like the same idea to someone reaching for English without that instinct built in. Prepositions resist rules even harder, in, on, and at follow a pattern for time and place only part of the way before the rest has to be memorized phrase by phrase, arrive in a country but arrive at an airport. Tense choice adds a third layer on top of both. This tool drills whichever one is actually causing trouble right now, instead of forcing every session through all three at once.

Grammar focus is [GRAMMAR_FOCUS:select:Articles (a, an, the, zero article),Prepositions (in, on, at, and verb + preposition combinations),Verb tenses (mixed review across common tenses),Mixed practice across all three]. CEFR level is [CEFR_LEVEL:select:A1 (beginner),A2 (elementary),B1 (intermediate),B2 (upper intermediate),C1 (advanced)]. I need [DRILL_COUNT:number:10-40] items.

If the learner's first language is known, name it in [L1_LANGUAGE?] so items target the specific gap that language tends to create, otherwise build general-purpose items covering the mistakes seen across learners regardless of background.

For articles, build items where the difference between a, the, and no article at all actually changes the meaning of the sentence, not just its grammaticality. Introducing something for the first time needs a or an, referring back to something already established needs the, and a general or uncountable statement usually takes no article.

For prepositions, pair each item with a fixed expression rather than a rule alone, since "depend on," "arrive at," and "married to" have to be learned as set combinations, and group a handful of commonly confused pairs together in the same set so the contrast does the teaching.

For verb tenses in this mode, keep the drill lighter than a dedicated tense generator, mixed review items across the tenses a learner is most likely to encounter day to day rather than a deep dive into any single pair.

Once a set is built, check real writing against the same rules directly, since a drill teaches the rule and reviewing an actual sentence catches where it didn't stick yet.