Advanced English Grammar - Conditionals and Wishes

This sentence describes a mixed conditional situation where the present state of being hungry is a result of a past action. The third conditional structure in the "if" clause ("had not eaten") combined with the second conditional in the main clause ("would not be") correctly expresses this hypothetical past action and its hypothetical present result.

The second sentence establishes that the event happened in the past. To express a regret or wish about a past situation, we use "wish" followed by the past perfect or a past conditional form like "would have come". Option D is the only choice that correctly expresses this past regret.

To express a wish about a present inability or impossibility, we use the past simple form of the modal verb. The past form of "can" is "could", which correctly completes the wish clause. Options B and D use present forms which are grammatically incorrect after "wish".

This sentence describes an unreal or hypothetical situation in the present. A second conditional sentence is used for such situations, requiring the past simple ("did") in the "if" clause and "would" + base verb ("would eat") in the main clause.

This is a mixed conditional sentence where a hypothetical past action ("had made dinner") would result in a different present state ("would not be hungry"). Option C correctly pairs the past perfect in the "if" clause with "would not" + base verb in the main clause.

The sentence describes a hypothetical alternative to the present reality. To express this, we use the second conditional with a past subjunctive/continuous form ("weren't snowing") in the "if" clause and "would be" + present participle ("would be swimming") in the main clause.

The first sentence establishes that the purchase happened in the past. Therefore, the conditional sentence must describe a hypothetical past situation, which requires the third conditional: past perfect ("had had") in the "if" clause and "would have" + past participle ("would have bought") in the main clause.