| Indicative |
|---|
| Present |
|---|
| I | cost | | you | cost | | he/she/it | costs | | we | cost | | you | cost | | they | cost |
| | Present Progressive |
|---|
| I | am costing | | you | are costing | | he/she/it | is costing | | we | are costing | | you | are costing | | they | are costing |
|
|
| Past |
|---|
| I | cost | | you | cost | | he/she/it | cost | | we | cost | | you | cost | | they | cost |
| | Past Progressive |
|---|
| I | was costing | | you | were costing | | he/she/it | was costing | | we | were costing | | you | were costing | | they | were costing |
|
| Perfect |
|---|
| I | have cost | | you | have cost | | he/she/it | has cost | | we | have cost | | you | have cost | | they | have cost |
| | Perfect Progressive |
|---|
| I | have been costing | | you | have been costing | | he/she/it | has been costing | | we | have been costing | | you | have been costing | | they | have been costing |
| | Pluperfect I |
|---|
| I | had cost | | you | had cost | | he/she/it | had cost | | we | had cost | | you | had cost | | they | had cost |
| | Pluperfect II |
|---|
| I | had cost | | you | had cost | | he/she/it | had cost | | we | had cost | | you | had cost | | they | had cost |
|
| Future I |
|---|
| I | will cost | | you | will cost | | he/she/it | will cost | | we | will cost | | you | will cost | | they | will cost |
| | Future II |
|---|
| I | am going to cost | | you | are going to cost | | he/she/it | is going to cost | | we | are going to cost | | you | are going to cost | | they | are going to cost |
| | Future Progressive |
|---|
| I | will be costing | | you | will be costing | | he/she/it | will be costing | | we | will be costing | | you | will be costing | | they | will be costing |
| | Future Perfect |
|---|
| I | will have cost | | you | will have cost | | he/she/it | will have cost | | we | will have cost | | you | will have cost | | they | will have cost |
|
|
| Conditional |
|---|
| Present |
|---|
| I | would cost | | you | would cost | | he/she/it | would cost | | we | would cost | | you | would cost | | they | would cost |
| | Progressive |
|---|
| I | would be costing | | you | would be costing | | he/she/it | would be costing | | we | would be costing | | you | would be costing | | they | would be costing |
| | Past Progressive |
|---|
| I | would have been costing | | you | would have been costing | | he/she/it | would have been costing | | we | would have been costing | | you | would have been costing | | they | would have been costing |
|
| Subjunctive |
|---|
| Present |
|---|
| I | cost | | you | cost | | he/she/it | costs | | we | cost | | you | cost | | they | cost |
| | Present Perfect |
|---|
| I | have cost | | you | have cost | | he/she/it | has cost | | we | have cost | | you | have cost | | they | have cost |
| | Past |
|---|
| I | cost | | you | cost | | he/she/it | cost | | we | cost | | you | cost | | they | cost |
| | Pluperfect I |
|---|
| I | had cost | | you | had cost | | he/she/it | had cost | | we | had cost | | you | had cost | | they | had cost |
|
| Past |
|---|
| I | cost | | you | cost | | he/she/it | cost | | we | cost | | you | cost | | they | cost |
| | Pluperfect II |
|---|
| I | had cost | | you | had cost | | he/she/it | had cost | | we | had cost | | you | had cost | | they | had cost |
|
| Imperative |
|---|
| Imperative |
|---|
| you | cost | | he/she/it | cost | | we | let us cost | | you | cost | | they | cost |
| | Negative Imperative |
|---|
| you | do not cost | | he/she/it | do not cost | | we | let us not cost | | you | do not cost | | they | do not cost |
|