In the following sentence, four words or phrases have been highlighted. One of them is incorrect. Select the INCORRECT word or phrase from the given options.
I think most of the problems could be overcomed if we tried hard enough.

Correct option is B

The error lies in option (b).
• Explanation: The verb form 'overcomed' is grammatically incorrect. The verb 'overcome' is irregular and its forms are: base form 'overcome', simple past 'overcame', and past participle 'overcome'. Following the passive construction 'could be', the past participle form (V³) must be used. Therefore, 'overcomed' should be corrected to 'overcome'.
• Thus, the error is an incorrect past participle form of an irregular verb, and it is corrected by replacing 'overcomed' with 'overcome'.
• Grammatical rule (English): Passive modal structures follow the pattern: 'Modal verb + be + V³ (Past Participle)'. Irregular verbs do not use the standard '-ed' suffix to form their past participle state.
• व्याकरण नियम (Hindi): 'Could be' (passive structure) के बाद हमेशा verb की third form (V³) का प्रयोग होता है। 'Overcome' एक irregular verb है और इसकी third form 'overcome' ही होती है, 'overcomed' कोई शब्द नहीं है।

So the correct answer is (b)