опускаться vs опуститься
opuskatsya vs opustit'sya — go/lower down vs descend/lower completely
Register: neutral
What it really means
Опускаться is imperfective for descending, lowering, or undergoing a downward trend. Опуститься is perfective for reaching a lower position or completing one descent. Reflexive forms describe the subject moving down; опускать/опустить means lower or put something down and takes an object.
Examples in natural speech
Лифт медленно опускается.
The elevator is descending slowly.
Солнце опускается за горизонт.
The sun is sinking below the horizon.
Он опустился на стул.
He sat down onto the chair.
Температура опустилась ниже нуля.
The temperature fell below zero.
Опусти руку.
Lower your hand.
Common mistakes
Do not use опуститься for an ongoing falling trend; use опускаться. Keep the transitive distinction clear: опустить руку means lower your hand, while рука опустилась means the hand dropped or was lowered.
Memory tip
Опускаться follows the downward path; опуститься arrives at the low point.
Frequently asked questions
Can опуститься mean “sink” morally?
Yes: опуститься до лжи means sink so low as to lie, with до + genitive marking the reached level.
What is опускаться на колени?
It means kneel down or lower oneself onto one's knees; the imperfective can describe the motion in progress or repeated action.
How does падать differ?
Падать means fall, often unintentionally or rapidly; опускаться presents controlled or gradual downward movement.
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