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