Learn Hardcore Spanish (Spain): Tengo una duda importante sobre el informe. - I have an important question about the report.

Breakdown of Tengo una duda importante sobre el informe.

Why does Spanish use tengo here instead of something like soy or estoy?

Because Spanish expresses this idea with tener (to have), not to be.

So:

This is very common in Spanish. Compare:

Even when English uses to be, Spanish often uses tener.

What exactly does duda mean here?

Duda literally means doubt, but in everyday Spanish it often means:

So Tengo una duda importante sobre el informe can mean something like:

In real conversation, tengo una duda is extremely common when someone wants clarification.