Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Conjugation and DeclensionMedium · 45s
Which sentence correctly uses a verb in Present Perfect Continuous Tense?
TopicConjugation and Declension
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Q 1 / 30Next question →
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
'They have been studying since morning' is Present Perfect Continuous (have/has been + verb-ing).
Final Answer: Option B — They have been studying since morning.