Future Perfect Continuous Tense
How Do We Make The Future Perfect Continuous Tense?
Below you will find the structure of the future perfect continuous:
|subject||+||auxiliary verb WILL||+||auxiliary verb HAVE||+||auxiliary verb BE||+||main verb|
|invariable||invariable||past participle||present participle|
|will||have||been||base + ing|
Question sentences using the future perfect continuous tense require us to exchange the subject and will. Negative sentences in this tense require us to insert not between will and have. Below are some examples of the future perfect continuous tense:
|subject||auxiliary verb||auxiliary verb||main verb|
|+||He||will||have||been||flying||for 12 hours.|
|–||We||will||not||have||been||sewing||with the sewing machine.|
In using the future perfect continuous tense in conversation, most people contract the subject and auxiliary verb:
Negative sentences using the future perfect continuous tense also use the contraction won’t:
|I will not||I won’t|
|you will not||you won’t|
|he will not||he won’t|
|she will not||she won’t|
|it will not||it won’t|
|we will not||we won’t|
|they will not||they won’t|
Use Of Future Perfect Continuous Tense
When we need to talk about a long activity that will happen before a specific time in the future we use the future perfect continuous tense. For example:
- Jane will have been sleeping for two hours by the time you arrive.
- She will need a shower when she gets here. She will have been working at the hospital all day.