| Present Simple - Настоящее время |
| Вопросительная форма | Утвердительная форма | Отрицательная форма |
| Do I sustain? | I sustain | I don't sustain |
| Does he sustain? | He sustains | He doesn't sustain |
| Does she sustain? | She sustains | She doesn't sustain |
| Does it sustain? | It sustains | It doesn't sustain |
| Do you sustain? | You sustain | You don't sustain |
| Do we sustain? | We sustain | We don't sustain |
| Do they sustain? | They sustain | They don't sustain |
| Past Simple - Прощедщее время |
| Вопросительная форма | Утвердительная форма | Отрицательная форма |
| Did I sustain? | I sustained | I didn’t sustain |
| Did he sustain? | He sustained | He didn’t sustain |
| Did she sustain? | She sustained | She didn’t sustain |
| Did it sustain? | It sustained | It didn’t sustain |
| Did we sustain? | We sustained | We didn’t sustain |
| Did you sustain? | You sustained | You didn’t sustain |
| Did they sustain? | They sustained | They didn’t sustain |
| Future Simple - Будущее время |
| Вопросительная форма | Утвердительная форма | Отрицательная форма |
| Will I sustain? | I will sustain | I won’t sustain |
| Will he sustain? | He will sustain | He won’t sustain |
| Will she sustain? | She will sustain | She won’t sustain |
| Will it sustain? | It will sustain | It won’t sustain |
| Will we sustain? | We will sustain | We won’t sustain |
| Will you sustain? | You will sustain | You won’t sustain |
| Will they sustain? | They will sustain | They won’t sustain |
