Declension of the word "треуголка"

Russian Verb Conjugation and Word Declension Online

PROMT.One helps you quickly check Russian word forms online. Enter a verb, noun, adjective, or numeral and get a table instantly: for verbs — forms by person, number, tense, and mood; for nouns, adjectives, and numerals — declension by case, gender, and number. It is useful for learning, translation, and quick form checks.

What the Table Shows

The service shows Russian verb conjugation and the declension of different parts of speech in one table. You can quickly compare forms and choose the correct option for your text or speech.

• Russian verb forms by person, number, tense, and mood.
• Regular and irregular verb forms: читать → читаю, читаешь, читаем; ехать → еду, едешь.
• Noun declension by case in the singular and plural: стол → стола, море → морем, дочь → дочери.
• Adjective forms by gender, number, and case: новый → нового, новому; интересные → интересными.
• Numeral declension by case: два → двух, полтора → полутора, девятьсот → девятьюстами.
• Noun declension types, including irregular and indeclinable patterns.

How to Use It

• Enter a Russian word in the search bar.
• Click Conjugation.
• Get the table: for verbs — conjugation; for nouns, adjectives, and numerals — declension by case.

FAQ

What can I check?
Russian verb conjugation, as well as the declension of nouns, adjectives, and numerals.

Does the service show cases, numbers, and other forms?
Yes. PROMT.One shows forms by case, number, gender, person, tense, and mood, depending on the part of speech.

Is it useful for translation, learning, and writing?
Yes. The tables help you quickly check the form you need, avoid mistakes, and use words more confidently in context.

Try it now: enter a Russian word and get its conjugation or declension table in PROMT.One.