подпере́ть

Very rarely used word (top 20,000)

Verb aspects

Imperfective (ongoing or repeatedly):

prop up

Perfective (completed or one-time):

prop up

Он принёс не́сколько поду́шек, чтобы подпере́ть её го́лову.He fetched a few cushions to prop up her head.

Imperative
ты	подопри́
вы	подопри́те

Active present
Active past	подпёрший	someone who was doing
Passive present
Passive past	подпёртый	something which was being done
Gerund present
Gerund past	подпёрши подпере́в	while doing (past)