Question

Identify the sentence that is not in future perfect tense.

a) I will have been waiting here for four hours by six o’clock.
b) By 2002, I will have been living in London for sixteen years.
c) By this time next week, I will have worked on this project for 30 days.
d) All of the above.

Answer 1

Hint: We use the future tense to indicate an action or event that will begin and end in the future itself. The future perfect tense is utilized with a time expression as it focuses on the time the action will be completed in the future.

Complete answer:

Let’s look at the structure of the future perfect tense-
The future perfect tense is used to illustrate an action which is promised to be done by a certain time in the future.
Structure:
Subject + shall/will + have + verb in the past participle . . . . . . . .
Examples:
She will have cleaned the house before her father arrives. Here, we can conclude that ‘X’ will have cleaned the house in the future before her father’s arrival.
Option a and option b follow the structure of future perfect continuous tense. So, both options are incorrect in the sense that they do not follow the structure of Future perfect tense. So, according to the demand of the question, these two options are the correct options.
Option c follows the structure of future perfect tense and hence according to the demand of the question, it is incorrect.
The correct answers are Option ‘a’ and ‘b’.

Note: You should be aware of the formation and usage of each tense. Keep in mind, we always use the 3rd form or the past participle form of the verb in the perfect tense forms.