improvement [v]
- aufpolieren
chemistry [v]
- reinigen
- verfeinern
- raffinieren

improvement [v]
- lustrer
- polir
chemistry [v]
- déféquer
- purifier
- raffiner

improvement [v]
- lucidare
- pulire
chemistry [v]
- defecare
- purificare
- raffinare

improvement [v]
- pulir
- perfeccionar
chemistry [v]
- defecar
- depurar
- purificar

improvement [v]
- oppoetsen
- bijschaven
- bijwerken
- verfijnen
chemistry [v]
- zuiveren
- klaren
- raffineren

improvement [v]
- polera upp
chemistry [v]
- rena
- raffinera

improvement [v]
- aprimorar-se
- refinar-se
chemistry [v]
- filtrar
- depurar
- refinar

polish [v]
- perfect
- improve
- cultivate
- better
- clarify
- civilise
- civilize
- edify
purify [v]
- filter
- cultivate
- cleanse
- strain
- sift
- process
- purge

Present participle; Past participle
- refining
- refined
Present
- refine
- refine
- refines
- refine
- refine
- refine
Past
- refined
- refined
- refined
- refined
- refined
- refined
Future
- will refine
- will refine
- will refine
- will refine
- will refine
- will refine
Present conditional
- would refine
- would refine
- would refine
- would refine
- would refine
- would refine
Present Perfect
- have refined
- have refined
- has refined
- have refined
- have refined
- have refined
Past Perfect
- had refined
- had refined
- had refined
- had refined
- had refined
- had refined
Future Perfect
- will have refined
- will have refined
- will have refined
- will have refined
- will have refined
- will have refined
Past conditional
- would have refined
- would have refined
- would have refined
- would have refined
- would have refined
- would have refined
Imperative
- -
- refine
- -
- -
- -
- -