pencil [v]
- anspitzen
knife [v]
- wetzen
sound [v]
- verschärfen

pencil [v]
- tailler
knife [v]
- aiguiser
- affûter
sound [v]
- devenir plus acerbe
- devenir plus âpre

pencil [v]
- fare la punta a
knife [v]
- affilare
sound [v]
- farsi acuto

pencil [v]
- sacar punta a
knife [v]
- afilar
sound [v]
- afilar

pencil [v]
- aanpunten
- scherpen
knife [v]
- wetten
- scherpmaken
sound [v]
- verscherpen

pencil [v]
- vässa
knife [v]
- bryna
- slipa
- vässa
sound [v]
- bli skarpare

pencil [v]
- apontar
- fazer a ponta
knife [v]
- afiar
- amolar
sound [v]
- tornar-se agudo
- afinar

grind [v]
- whet
- smooth
- rub

Present participle; Past participle
- sharpening
- sharpened
Present
- sharpen
- sharpen
- sharpens
- sharpen
- sharpen
- sharpen
Past
- sharpened
- sharpened
- sharpened
- sharpened
- sharpened
- sharpened
Future
- will sharpen
- will sharpen
- will sharpen
- will sharpen
- will sharpen
- will sharpen
Present conditional
- would sharpen
- would sharpen
- would sharpen
- would sharpen
- would sharpen
- would sharpen
Present Perfect
- have sharpened
- have sharpened
- has sharpened
- have sharpened
- have sharpened
- have sharpened
Past Perfect
- had sharpened
- had sharpened
- had sharpened
- had sharpened
- had sharpened
- had sharpened
Future Perfect
- will have sharpened
- will have sharpened
- will have sharpened
- will have sharpened
- will have sharpened
- will have sharpened
Past conditional
- would have sharpened
- would have sharpened
- would have sharpened
- would have sharpened
- would have sharpened
- would have sharpened
Imperative
- -
- sharpen
- -
- -
- -
- -