Word
Близорукость и астигматизм требуют новых линз.
Meaning
Nearsightedness and astigmatism require new lenses.
Part of speech
sentence
Pronunciation
Course
Breakdown of Близорукость и астигматизм требуют новых линз.
и
and
новое
new
требовать
to require
линза
the eyeglass lens
Questions & Answers about Близорукость и астигматизм требуют новых линз.
Why is требуют plural when близорукость and астигматизм are both singular words?
Because they form a compound subject joined by и (and).
- близорукость = singular noun
- астигматизм = singular noun
- together: близорукость и астигматизм = myopia and astigmatism
In Russian, when two singular nouns are joined by и, the verb is usually plural:
- Мама и папа пришли. = Mom and Dad arrived.
- Близорукость и астигматизм требуют... = Myopia and astigmatism require...
So требуют is plural because the subject is understood as two things together.
Why is новых линз in the genitive plural instead of something like новые линзы?
Because the verb требовать normally takes the genitive case for the thing required.
So:
- требовать чего? = to require what?
- линз is the genitive plural of линзы / линза
- новых matches линз in case and number, so it is also genitive plural
That is why you get:
- требуют новых линз
and not:
- требуют новые линзы
A useful pattern to remember is:
- требовать времени = to require time
- требовать помощи = to require help
- требовать новых линз = to require new lenses
What case are and in?