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