Here is a breakdown of the translation:
- "J'ai" means "I have".
- "Quatre" means "four".
- "Chiens" means "dogs".
It is important to remember that, in French, the adjective must agree in gender and number with the noun it is describing. In this case, the word for dog is masculine singular ("chien"), so the adjective "quatre" must also be masculine singular. If you had multiple dogs, the word "chiens" would be plural and the word "quatre" would need to be plural as well ("J'ai quatre chiens").