"Teď mluvím já."

Translation: I am speaking now.

[zabozrouticku]

Shouldn't "I am now speaking" be a valid translation too?
Is sounds much more natural and appropriate than the suggested answer...

[ion1122]

To my ears (American English) "I am speaking now" sounds better than "I am now speaking".

[Vifon_the_Dog]

In the original sentence, "já" is the stressed word - "Teď mluvím já", and "I am speaking now".