| Part of speech | verb |
|---|---|
| Hyphenation | hard·i |
| Indicative mood | |
|---|---|
| Present tense | hardas |
| Past tense | hardis |
| Future tense | hardos |
| Conditional mood | |
| hardus | |
| Imperative mood | |
| hardu | |
| Participles | ||
|---|---|---|
| Active participles | Passive participles | |
| Present tense | hardanta | hardata |
| Past tense | hardinta | hardita |
| Future tense | hardonta | hardota |
| Catalan | endurir; trempar |
|---|---|
| Dutch | harden; temperen |
| English | harden; temper; season; steel; toughen |
| Faeroese | herða |
| French | durcir; tremper |
| German | hart machen; härten; abhärten; stählen; erhärten; abbinden; wappnen |
| Portuguese | endurecer; enrijar; temperar |
| Saterland Frisian | häd moakje; hädje; stäilje |
| Spanish | endurecer; templar |