Element FORM: AFFIRMATIVE
SuperCat FUTURE
SubCat future perfect simple
Lexical Range N/A
Level B2
Cando Can use the affirmative form with 'will'.
Corrected Learner Example I'm sure I will have learned today's lesson by the next lesson. (Brazil; B2 VANTAGE; 2003; Portuguese; Pass)

It seems that the decorative role of clothes will have disappeared by the year 2050. (Kazakhstan; B2 VANTAGE; 2000; Russian; Pass)
Uncorrected Learner Example I'm sure I will have learned today's lesson by the next lesson. (Brazil; B2 VANTAGE; 2003; Portuguese; Pass)

It seems that the decorative role of clothes will have disappeared by the year of 2050. (Kazakhstan; B2 VANTAGE; 2000; Russian; Pass)

Comments There is no evidence in the CLC of the future perfect simple with 'shall' rather than 'will'.

Cambridge University Press