Synonyms: warrant, vouch
| Part of speech | verb |
|---|
| Indicative mood | |
|---|---|
| Present tense | Past tense |
| (I) guarantee | (I) guaranteed |
| (thou) guaranteest | (thou) guaranteedst |
| (he) guarantees, guaranteeth | (he) guaranteed |
| (we) guarantee | (we) guaranteed |
| (you) guarantee | (you) guaranteed |
| (they) guarantee | (they) guaranteed |
| Subjunctive mood | |
| Present tense | Past tense |
| (I) guarantee | (I) guaranteed |
| (thou) guarantee | (thou) guaranteed |
| (he) guarantee | (he) guaranteed |
| (we) guarantee | (we) guaranteed |
| (you) guarantee | (you) guaranteed |
| (they) guarantee | (they) guaranteed |
| Imperative mood | |
| guarantee | |
| Participles | |
| Present participle | Past participle |
| guaranteeing | guaranteed |
| Catalan | garantir |
|---|---|
| Danish | garantere; sikre |
| Dutch | borg staan voor; garanderen; waarborgen; borgen |
| Esperanto | garantii |
| Finnish | taata |
| French | assurer; cautionner; garantir |
| German | garantieren; gewährleisten |
| Low German | sponsoren |
| Polish | gwarantować |
| Portuguese | afiançar |
| Romanian | garanta |
| Saterland Frisian | Gewäär laistje; haftje |
| Spanish | afianzar |
| Sranan | dyaranti |
| Swedish | garantera |