| Irregular forms are printed in red. | |
| Indicative | |
|---|---|
| Presens | Preterite |
| (I) cost /kɒst/ | (I) cost |
| (thou) costest /ˈkɒstɪst/ | (thou) costest |
| (he) costs /kɒsts/, costeth /ˈkɒstɪθ/ | (he) cost |
| (we) cost | (we) cost |
| (you) cost | (you) cost |
| (they) cost | (they) cost |
| Subjunctive | |
| Presens | Preterite |
| cost | cost |
| Imperative | |
| cost | |
| Participles | |
| Present | Past |
| costing /ˈkɒstɪŋ/ | cost |