Questions & Answers about El transportí i l'abeurador són al cotxe.
Because abeurador starts with a vowel sound. In Catalan, the singular definite articles el and la usually apostrophize before a vowel or silent h:
- el + abeurador → l'abeurador
- la + aula → l'aula
So l'abeurador simply means the water bowl / the drinking container.
Because the subject is plural.
The subject is:
- El transportí
- i
- l'abeurador
Two singular nouns joined by i make a plural subject, so the verb must also be plural:
- és = is
- són = are
So:
- El transportí és al cotxe = The carrier is in the car.
- El transportí i l'abeurador són al cotxe = The carrier and the water container are in the car.