What is an example of a second conditional sentence?

The second conditional is used to talk about hypothetical or unreal situations in the present or future. It typically follows the structure "if + past simple, would + base form of the verb." In the case of the sentence "If I won the lottery, I would travel the world," the speaker is expressing a hypothetical situation that is not currently true—the idea of winning the lottery—and what they would do if that situation were to happen.

This structure effectively conveys a sense of imagining something that is unlikely or not real at the moment. The use of "won" (the past tense of "win") signals the hypothetical nature of the condition. The phrase "would travel" shows the consequence of that hypothetical condition, indicating what the speaker intends to do if that unlikely event occurs. This aligns perfectly with the second conditional structure.

In contrast, the other choices illustrate different forms of conditional sentences. The first choice describes a hypothetical situation in the past that implies a different structure. The third and fourth choices reflect first conditional sentences that indicate real possibilities in the future rather than hypothetical scenarios.