English Tenses Master & Conjugator
12 Tenses EngineReference formulas, time markers, and real-time verb conjugation across affirmative (+), negative (−), and question (?) forms.
Private by architecture:
All processing is 100% client-side memory. Your data never leaves this browser tab.
Quick Presets:
Principal Parts
write Irregular
write
wrote
written
writing
writes
| Tense & Structure | + Affirmative | − Negative | ? Interrogative |
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About This Tool
English grammar organizes actions and states into 12 primary tenses formed by combining three timeframes (Present, Past, Future) with four aspects (Simple, Continuous, Perfect, and Perfect Continuous).
This interactive tool provides clear structural formulas, common signal words, and a real-time verb conjugator. Type any base regular or irregular verb to instantly see it conjugated across all 12 tenses in positive, negative, and question forms.
Key Features
- Complete 12 tenses reference: Formulas, clinical usage rules, and time marker signal words for every tense in Present, Past, and Future.
- Interactive 12-tense conjugator: Type any English verb (regular or irregular) and conjugate it across all 12 tenses for any subject pronoun.
- Affirmative, Negative & Question forms: Shows positive (+), negative (−), and interrogative (?) structures side-by-side with auxiliary verb agreements.
- Principal Verb Forms anatomy: Instantly inspect Base (V1), Past (V2), Past Participle (V3), Present Participle (-ing), and irregular classification.
- Adaptive mobile reflow: Zero awkward horizontal tables on phones. Automatically reflows into thumb-friendly cards with 1-click copy.
- 100% private in-browser: Conjugations and grammar logic execute entirely in local JavaScript memory with zero network dependencies.
Frequently Asked Questions
What are the 12 English tenses?
The 12 tenses are: Simple Present, Present Continuous, Present Perfect, Present Perfect Continuous, Simple Past, Past Continuous, Past Perfect, Past Perfect Continuous, Simple Future, Future Continuous, Future Perfect, and Future Perfect Continuous.
What is the difference between Simple Past and Present Perfect?
Simple Past describes an action completed at a definite, stated time in the past (e.g. "I wrote the tests yesterday"). Present Perfect connects a past action to the present, focusing on the result or an unfinished timeframe (e.g. "I have written the tests").
How do regular and irregular verbs differ in past forms?
Regular verbs form both their Past (V2) and Past Participle (V3) by adding -ed (e.g. work -> worked -> worked). Irregular verbs change spelling unpredictably (e.g. write -> wrote -> written; build -> built -> built). This tool handles irregular inflection automatically.
Can I practice with any verb?
Yes. Enter any base infinitive verb into the conjugator input. The engine evaluates irregular verb tables and regular phonetic suffix rules to generate complete conjugation matrices.
