Conditional sentence: "If I encountered" uses a conditional sentence to describe a hypothetical situation, demonstrating the complexity of the answer in terms of grammar and the correct use of conditional sentence patterns.
Simple past tense: "I encountered" uses the simple past tense to express a past event, showing good control of verb tenses.
Present participle: "stating" uses the present participle as an adverb, adding to the amount of information and complexity of the sentence, while also making the sentence more fluent.