To express possession, you can use the word عِندَ (a’inda), which means “to have”. This word requires a pronoun suffix, or “attached pronoun”. For example, the attached pronoun نا (-na) is used for “we”. Take عِندَ and add نا and it becomes عِندَنا (a’indana), which means “we have”. It is important to note that عِندَ is not a verb.
Here are some objects:
سَيّارة (sayyara) - a car
بَيت (beyt) - a house, home
مَكاتِب (maktab) - an office
Now, say عِندَنا followed by the object, which can be definite (e.g. the car) or indefinite (e.g. a car).
عِندَنا سَيارة - We have a car
عِندَنا السَيارة - We have the car
The attached pronouns can also be suffixed to the object nouns. For example, تَيتنا (beytna) which means “our house”.
Here is the list of all attached pronouns.