"How can I say (some specific word) in Tagalog? " o "How do you say (the word) in Tagalog?",
tama ba ang mga pangungusap sa baba?
Pakiusap turuan ninyo ako ng pinakanatural expression.
1)Anong sinasabi mo (the word) sa Tagalog?
2)Anong dapat kong sabihin (the word) sa Tagalog?
3)Paano pwede akong sabihin (the word) sa Tagalog?
Let's say you want to ask the Tagalog word for beautiful, you say "Anong Tagalog ng beautiful?"
In literal translation it means "What is the Tagalog word for beautiful?"
That's the most natural way to say it.