Learn Romanian: Noi avem un copil.

Avem is the specific form of the verb a avea (to have) used with noi (we). In Romanian, verbs change depending on who is doing the action. While am means 'I have', avem means 'we have'.

Can I drop the word noi and just say avem un copil?

Yes, you can! Because the verb form avem already tells us that 'we' are the ones doing the action, the pronoun noi is optional. Romanian speakers often drop it unless they want to add emphasis, like saying 'We have a child (but they do not).'

Why is the word for 'a' un instead of o?

In Romanian, the word for 'a' or 'an' changes based on the gender of the noun. Copil is a masculine noun, so it takes the masculine article un. You would use o for feminine nouns, like o fată (a girl).

How would this sentence change if we had more than one child?

The word for 'child' is copil, and its plural form is copii (children). You would also need to drop un (a/an) or replace it with a number. For example, 'We have children' is Avem copii, and 'We have two children' is Avem doi copii.