Questions & Answers about السباك يصلح العطل الآن.
Why does the verb يصلح start with a 'yu' sound instead of 'ya'?
Because it is a Form II verb (فعّل). In the present tense, the prefix for Form II verbs always takes a damma (the 'u' vowel), making it يُصَلِّح (yuṣalliḥ). Form I verbs, which you learned earlier, usually start with an 'a' sound.
How can I tell this is a Form II verb if there are no vowel marks or shadda written on يصلح?
When reading without short vowels, you have to rely on context and your vocabulary. Form II verbs always double the middle root letter. Since you are learning that the verb 'to repair' is Form II, you know to mentally add the shadda and pronounce it as يُصَلِّح (yuṣalliḥ).
We learned that Arabic sentences usually start with the verb. Why does السباك (the plumber) come first here?
Both word orders are perfectly fine! A sentence starting with a verb is a verbal sentence, which is very common. Starting with the noun makes it a nominal sentence. Here, putting the noun first just puts a little extra focus on the plumber as the topic of the sentence.
What is the squiggly line above the alif in الآن (now)?
That mark is called a madda (آ). It represents a glottal stop followed by a long 'aa' vowel. So instead of a short 'a', you pronounce the word as 'al-aan'.