Learn Hardcore Italian: Umorismo fa ridere tutti.

In Italian, the causative construction is formed with the verb fare (here used as fa) followed by an infinitive. In this sentence, fa ridere literally means "makes laugh," indicating that humor causes everyone to laugh.

Why is the infinitive ridere used after fa instead of a conjugated form?

After a causative verb like fare, Italian grammar requires the following verb to remain in its infinitive form. This construction shows the action being caused—in this case, laughter—so ridere stays in its base form.

Why is there no article before umorismo? Would it be correct to say l'umorismo instead?

When expressing general truths or abstract concepts in Italian, it's common to omit the definite article. Umorismo fa ridere tutti is a general statement about humor, so leaving out the article is acceptable. You might see l'umorismo in other contexts, but both forms can be correct depending on emphasis.

How does the verb fa agree with the rest of the sentence, considering umorismo is singular and tutti is plural?

The subject of the sentence is umorismo, which is a singular noun. Therefore, the verb fa is correctly conjugated in the third person singular. The word tutti functions as the object referring to everyone affected by the humor, but it doesn’t change the verb agreement.