покача́ть

rare #13469C1

verbperfective imperfective is кача́ть

1.
to shake (one's head), to give a shake
Он молча покача́л голово́й.
He silently shook his head.
Most often with головой; expresses doubt or refusal.
2.
to rock (for a while), to swing (for a while), to dandle
Покача́й малыша́, он ско́ро уснёт.
Rock the baby a little, he'll fall asleep soon.
Perfective of a short action: a baby, a cradle, a branch.
3.
to pump (for a while)
Мы покача́ли во́ду из коло́дца.
We pumped some water from the well.
Of liquid, gas, air.
4.
to downloadcomputing
Покача́й мне пару фи́льмов на выходные.
Download me a couple of films for the weekend.
Colloquial, of data or files.

Examples

Мастер осмотрел перетёсанный брус и покачал головой.
The craftsman inspected the over-hewn beam and shook his head.
Мать, разнимавшая детей, покачала головой.
The mother who had separated the children shook her head.
Он покачал головой с явным неодобрением.
He shook his head in clear disapproval.
Том улыбну́лся и покача́л голово́й.
Tom smiled and shook his head.
Продавец, обглядевший машину со всех сторон, покачал головой.
The salesman, having looked the car over from all sides, shook his head.
Я лишь мог покача́ть голово́й.
I could only shake my head.
Учитель, посчитавший все ошибки, покачал головой.
The teacher, having counted all the mistakes, shook his head.
Старик горестно покачал головой.
The old man shook his head sadly.

Imperative
ты	покача́й
вы	покача́йте

Active present	-
Active past	покача́вший	having swayed, having rocked, having shaken (a bit)
Passive present	-
Passive past	пока́чанный	swung, rocked, swayed
Gerund present	-
Gerund past	покача́в покачавши	while doing (past)

кача́тьto rock; to shake (one's head); to pump; to download
verbimperfective
вкача́тьto pump in; to pump in (money); to upload
verbperfective
укачатьto rock to sleep; to make sick (from motion); to rock back and forth
verbperfective
вы́качатьto pump out
verbperfective
докача́тьto pump up (fully); to finish downloading
verbperfective