Learn Arabic (Modern Standard): يتمنى الضيف أن يزور المتحف غدا. - The guest wishes to visit the museum tomorrow.

The word أن (an) acts like the English word "to" when connecting a desire or intention to an action. Since the guest "wishes to visit", we use أن between يتمنى (he wishes) and يزور (he visits). In Arabic, this structure literally translates more like "wishes that he visits".

Does أن change how we pronounce the verb يزور?

Yes! When أن comes right before a present tense verb, it changes the verb's final short vowel from a "u" sound to an "a" sound. So instead of the default يزورُ (yazooru), it becomes أن يزورَ (an yazoora).

Why is the verb يتمنى placed before the subject الضيف?

This is a standard Arabic sentence structure called a verbal sentence. It is very natural and common in Arabic to start a sentence with the main verb (the action) and follow it immediately with the subject (the person doing the action).

Why does the verb يتمنى end with a letter that looks like a "yaa" without dots?

That letter is called an "alif maqsoora" (ى). Even though it looks like a dotless "yaa", it is pronounced exactly like a regular "alif" (a long "aa" sound). You will often see this special letter at the end of Arabic verbs and nouns.