Learn Romanian: Medicul vrea să vadă copilul imediat. - The doctor wants to see the child immediately.

This is the special subjunctive form used after să. For the verb a vedea (to see), the regular present tense for "he/she sees" is vede. But when following să, the form changes to vadă.

How does the Romanian structure for "wants to see" differ from English?

In English, we use the infinitive "to see". Romanian links the two verbs using să. The sentence literally translates to "The doctor wants that he sees the child" (vrea să vadă).

Could I say "Medicul vrea să vede copilul"?

No, that would be incorrect. While the first person (I) and second person (you) often look exactly like the normal present tense after să, the third person (he/she/they) almost always changes its ending. You must use the special 3rd person form vadă.

Why do both Medicul and copilul end in -ul?

The suffix -ul acts as the word "the" for most masculine singular nouns. You attach it directly to the end of the word: medic (doctor) becomes medicul, and copil (child) becomes copilul.