English · Tenses
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Engineers _____ working on a new project for the last three days.
- A
Are
- B
Has been
- C
Have been
- D
Ought to be
The given sentence is an example of the "present perfect continuous" tense, indicated by its structure. 'Engineers' is a plural noun, so it must also be followed by a plural verb. Hence, "have been" is the correct option.
'Are' is not a helping verb of present perfect continuous tense. Hence, this option is incorrect.
Although 'has been' is used as a helping verb of the present perfect continuous tense, it is a singular verb. Because the subject is a plural noun, this option is incorrect.
'Have been' is a plural verb of the present perfect continuous tense. As the subject is also plural, this option is the correct option.
'Ought to be' is another form of 'should be'. It is a model verb and is not a suitable option for the given sentence.
Tagged under English · Tenses · 2022