Tanga, nganga and tihaya are witless, agape and supine in English, respectively. How about ‘napatanga,’ ‘napanganga’ and ‘napatihaya’?

You will use ‘fall’

Webster’s Encyclopedic Dictionary’s usage of ‘fall’: To pass into some state

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napanganga

Sa ganda ng pagtatanghal sa entablado, napanganga ako.

 

With the beauty of the performance on stage, I fell agape.

napatihaya

Kapag natutulog ako, ang postura ko ay laging nakatagilid. Pero dahil sa panaginip ko kagabi, napatihaya ako.

 

When I sleep, my posture is always lying on my side. But because of my dream last night, I fell supine.

mapapatanga

Mapapatanga ka kapag siya ay nagtanong.

 

You will fall witless when he asks question.