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The Future Perfect Continuous Tense isn't used very much in English and it is a little complicated to make. However, at higher levels it is great to understand it, and maybe use it sometimes too. It has a very precise meaning which can be convenient.
| Positive Form | Positive Short Form |
| I will have been working | I'll have been working |
| You will have been sleeping | You'll have been sleeping |
| She will have been studying | She'll have been studying |
| He will have been cooking | He'll have been cooking |
| It will have been raining | It'll have been raining |
| We will have been exercising | We'll have been exercising |
| They will have been travelling | They'll have been travelling |
Try a positive future perfect continuous exercise here.
| Negative Form | Negative Short Form |
| I will not have been working | I won't have been working |
| You will not have been sleeping | You won't have been sleeping |
| She will not have been studying | She won't have been studying |
| He will not have been cooking | He won't have been cooking |
| It will not have been raining | It won't have been raining |
| We will not have been exercising | We won't have been exercising |
| They will not have been travelling | They won't have been travelling |
Try an exercise about the negative form here.
| 'Yes / No' Questions |
| Will I have been working? |
| Will you have been sleeping? |
| Will she have been studying? |
| Will he have been cooking? |
| Will it have been raining? |
| Will we have been exercising? |
| Will they have been travelling? |
| 'Wh' Questions |
| Where will I have been working? |
| Why will you have been sleeping? |
| Where will she have been studying? |
| What will he have been cooking? |
| How long will it have been raining? |
| Where will we have been exercising? |
| How long will they have been travelling? |
Practise the question forms here.
Practise all the forms with this mixed exercise.