Select the most appropriate option to substitute the highlighted segment in the given sentence. If there is no need to substitute it, select ‘No substitution’.
How long have you being seating on this bench?

Correct option is C

The correct substitution of the highlighted words is (c) been sitting.
Explanation:
The highlighted segment “being seating” is grammatically incorrect for two reasons:
1. “Being” is not used after have in present perfect continuous tense.
2. “Seating” is a transitive verb (i.e., used to seat someone else), not suitable here.
Correct Verb Form:
· The correct tense is Present Perfect Continuous: have/has + been + present participle (verb+ing)
· The appropriate verb is “sit” → sitting
So, the correct sentence is:
How long have you been sitting on this bench?
Grammatical Rule Used:
For present perfect continuous:
· Structure: Subject + have/has + been + verb (ing form)
· Used to indicate an action that began in the past and is still continuing.
Why Other Options Are Incorrect:
· (a) being sat – Passive form and awkward usage in this context.
· (b) No substitution – Incorrect phrase as explained.
· (d) been seating – “Seating” is incorrect; should be “sitting” when referring to one's own action.
Final Sentence:
How long have you been sitting on this bench?
This structure is grammatically accurate and conveys the correct continuous action.