Question

. Seldom ______such a complicated problem
(A) I encountered i (B) I have encountered (C) When I have encountered (D) have I encountered​

Answer 1

Answer:

Option (D) have I encountered

Explanation:

Seldom have I encountered such a complicated problem

Plural Subjects require Plural verbs + Present Perfect tense fits best in the current situation...

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Answer 2

Seldom have I encountered​ such a complicated problem

• The term Have I is generally used in a sentence, If the sentence begins with a negative adverb
• The sentence must have an inverted word order.
• For example - Never before have I encountered such determination in a student.
• In the sentence, seldom determines that the problem was seen rarely.
• Thus, the correct sentence is - Seldom have I encountered​ such a complicated problem