There are no any grammatical indicators or strong rules for that. You can just look at the meaning of the word. Always singular are usually: - Substances, medicines etc (золото, вода, аспирин (gold, water, aspirin)...) - Collective nouns (мебель, молодёжь (furniture, youth/young people)...) - Abstract notions (радость, любовь (joy, love)...) Always plural are usually: - "Pair" words (брюки, ножницы (pants, scissors)...) - Some words you should simply remember: сутки, деньги, часы (day, money, watch/clock) As you can see, everything is more or less just like in English.

Words that describe paired things are often always plural both in Russian and English, for examlpe: но́жницы — scissors, очки́ — glasses, штаны́ — pants (US), трусы́ — trousers. In Russian some materials, substances and the like are either always plural or always singular: вода́ — water (there is a word во́ды, but it means water bodies, and used rarely), желе́зо — iron; words that mean feelings, states are often in singular: злость — anger, грусть — sadness. Words that tell you an attribute, some quality are singular too: доброта́ — kindness, постоя́нство — constancy, persistance. Some words just have a different form when they are in their plural form: люди (people, men) is always plural of человек (human, man, person). Unfortunately, there is no way to tell exactly by how a word looks if the word only has the singular or plural form. Only the meaning of the word can give some suggestions.

Как я знаю просянно (??? ) плюралистические имя (множественное число?) или просяанно (???) единственные имя? (единственное число?) Could you ask your question in English? Besause it's indecipherable.

Hello) Guess your question is about such nouns as "ножницы", "брюки", "очки" ets. (thay are always plural) and "соль", "сахар", "сметана" (singular). As well as in your native language, there is no particular rule, how to distinguish them. The good news is that there are not so many of them and some are the same as in English. Just read more, watch more movies and you will learn the most common words very fast)

There are many nouns that have a singular form in Englishut but in Russian have only a plural form, and on the contrary. It's best to just pay attention to those nouns , as you learn the language