Could you elaborate more, by giving examples of verbs, words ending in "t" perhaps? I mean, wich end in "hard "t"" or "soft" "t" (my way of saying that). Maybe it´s the case of weak or strong verbs, etc.
Phonetics is not my cup of tea, but there are experts of all colours here, so they could be of help to us.
See you around!
Anyway, I think you could dig up more, leaving their work easier.
Thanks for sharing your impressions and bringing your question to the table.