Questions & Answers about Шумная улица мешает мне засыпать.
In Russian, adjectives must agree with the noun in:
- gender
- number
- case
The noun улица is:
- feminine
- singular
- nominative (it’s the subject)
The basic forms of the adjective шумный (noisy) are:
- masculine: шумный
- feminine: шумная
- neuter: шумное
- plural: шумные
Since улица is feminine singular nominative, the adjective must be шумная улица, not шумный улица.
Улица is the grammatical subject of the sentence: it’s the thing that does the action (or causes the effect) expressed by the verb мешает.
In Russian, the subject is normally in the nominative case. So:
- Шумная улица – subject (nominative)
- мешает – verb
- мне засыпать – what is being affected
Roughly: The noisy street (subject) prevents me from falling asleep (object of the prevention).
So улица must be nominative, not another case.