Questions & Answers about Pavimentano il cortile.
Because Italian often leaves out subject pronouns when the verb ending already makes the subject clear.
Here, pavimentano already tells you the subject is they.
So:
- Pavimentano il cortile = They pave / are paving the courtyard
- Loro pavimentano il cortile = also possible, but usually less necessary
You would add loro only for emphasis, contrast, or clarity.
It can mean either one, depending on context.
Italian simple present often covers both:
- habitual action: they pave the courtyard
- action happening now: they are paving the courtyard
If Italian wants to stress that something is happening right now, it can also use:
- Stanno pavimentando il cortile = They are paving the courtyard
So the sentence you have is normal and natural, but context decides the best English translation.