I'd like to know what
Ich würde gerne wissen, was es ist.
I would like to know what it is.
Ich würde gerne wissen, was Tom jetzt gerade macht.
I would like to know what Tom is doing right now.
Ich würde gerne wissen, was du tust.
I’d like to know what you’re doing.
Ich würde gerne wissen, was es kostet.
I would like to know how much it costs.
Ich würde gerne wissen, was Tom passiert ist.
I’d like to know what happened to Tom.