The two parts of a conditional sentence with a 'si clause' We use 'si clauses' when we want to form conditional sentences. In fact, all conditional sentences in Spanish have the following two parts: 1. The condition, expressed (in a subordinate or dependant clause) with the conditional "si" (the actual si clause/if clause), and. 2. Examples: If he comes, ask him to wait. If it rains, we will get wet. If you study hard, you will pass your exam. There are four types of if sentences in English. The zero conditional; The type 1 conditional; The type 2 conditional; The type 3 conditional; The zero conditional. In a zero conditional sentence, we use a present tense in both The condition is her mother's sickness. This sentence is in the conditional perfect form, using the conditional tense of haber followed by the past participle.) María habría venido. Mary would have come. (This sentence is the same as the one above, but without the condition explicitly stated. The condition would have to be inferred from the Mixed Conditional. These conditionals are categorized on the basis of time, the likeliness of occurring and other factors. 1. Zero Conditional. In this type of conditional sentence, the sentences would be expressing some real conditions for all the things that are happening and not just hypothetical. In English grammar, a conditional sentence is a type of sentence that expresses one situation (the condition, antecedent, or protasis in a dependent clause) as a condition for the occurrence of another situation (the result, consequent, or apodosis in the main clause).Put simply, the basic structure underlying most conditional sentences can be expressed as, "If this, then that." The structure of a third conditional sentence. Like the other conditionals, a third conditional sentence consists of two clauses, an "if" clause and a main clause: I would have passed the exam. Explanation: I failed the exam, because I didn't study hard enough. If the "if" clause comes first, a comma is usually used. .

example of type 3 conditional sentence