Tense Switch
Convert each sentence to a new tense. Pick the correct version from four choices — five rounds in 90 seconds.
About Tense Switch
Tense Switch is a free ESL grammar game that drills the single most useful skill in English grammar: changing a sentence from one tense to another. Each round serves five short sentences on a 90-second timer. Every question shows you the original sentence (for example, "I eat breakfast every day.") and an instruction line ("Convert to past simple.").
Your job is to pick the correct converted version from four multiple-choice options. The right answer for that example is "I ate breakfast yesterday." because past simple uses the irregular form "ate" of the verb "eat", and the time marker changes from "every day" to "yesterday". Tense Switch covers the five transformation pairs that ESL learners actually need: present simple to past simple, present continuous to past continuous, past simple to present perfect, present simple to future "will", and active voice to passive voice.
That single mechanic — convert the sentence to the new tense — is what teachers ask for over and over in B1 and B2 grammar lessons, because it forces you to handle the auxiliary verb, the main verb form, and the third-person agreement all at once. The question pool currently has 30+ questions from A2 to B2, each carefully written so the contrast between the four options trains real recognition: one option is the correct target tense, and the three distractors are the most common other tenses learners might confuse it with. After every answer the game shows the correct form and a short plain-English explanation of the rule, so each round teaches you the why, not just the form.
The final result screen also breaks your accuracy down by transformation pair, so you can see which switch is your weakest and drill that next. Suits A2 to B2 learners building real grammar control, IELTS and TOEFL candidates fixing tense-shift errors that examiners watch for, and teachers running a fast classroom warm-up. Free, no sign-up needed.
Why play Tense Switch?
- ✓ Tense errors are one of the most common single grammar mistakes ESL learners make.
- ✓ Covers the 5 transformation pairs teachers drill most — past, perfect, future, and passive.
- ✓ Per-transition breakdown at the end shows exactly which switch needs more practice.
- ✓ Plain-English explanations teach the rule (e.g. "had + past participle"), not just the answer.
How to play
- Read the original sentence and the conversion instruction shown above the options.
- Pick the version of the sentence in the target tense from four choices.
- See the correct answer, an explanation, and the tense transition after each pick.
- Finish 5 questions before the 90-second timer runs out.
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Frequently asked questions
How do I play Tense Switch?
Each round serves five short English sentences on a 90-second timer. Every question shows you the original sentence plus an instruction line — for example, "I eat breakfast every day." with the instruction "Convert to past simple." You pick the correctly converted version from four multiple-choice options. The right answer for the example is "I ate breakfast yesterday." Faster correct answers earn more points, and answering correctly in a row builds a combo multiplier. After every answer the game shows the explanation and a small tense transition badge such as "present simple → past simple".
Which tense pairs does the game cover?
The five transformations ESL learners need most: present simple to past simple (the largest group), present continuous to past continuous, past simple to present perfect, present simple to future "will", and active voice to passive voice. Each round mixes pairs so you train the skill of choosing the right auxiliary and verb form, not just memorising one rule.
What CEFR levels does it target?
A2 to B2. A2 questions cover the basic transformations between present and past simple plus present and past continuous. B1 pushes into present perfect and future "will". B2 covers harder territory like active-to-passive conversion, where you have to flip the subject and object, change the verb to "be + past participle", and decide whether to drop the agent or keep it with "by". The mix means every round has something useful at every level.
Is Tense Switch good for IELTS or TOEFL?
Yes, directly. Wrong tense choice — especially mixing past simple with present perfect, or "going to" with "will" — is one of the most commonly marked grammar errors in IELTS Writing Task 2 and TOEFL Independent Writing. Daily play visibly reduces those errors and lifts grammatical range scores. The conversion format (pick the right rewrite of a fixed sentence) is closer to the real production task than isolated gap-fill, because you see the full sentence change rather than just one word.
Are explanations included?
Yes. After every answer the game shows a short plain-English explanation: the tense being tested, why the correct form is right, and where the rule applies. For irregulars it names the verb pair (e.g. "eat → ate"); for the perfect tenses it spells out the auxiliary plus past participle pattern (e.g. "have/has + past participle"); for the passive it shows the subject swap and the "be + past participle" structure. The final result screen also breaks your accuracy down by transformation pair so you can see what to drill next.