From what I saw in the hints τροει is 3rd person singular (he, she) -> eats.

As for τρωω, I know it means eat so it may be 1st person singular -> I eat.

However I'm a beginner myself, if anyone know better feel free to correct me. I don't mind. ^-^

ω = I ει = he/she/it

It's not clear to me when to use τρωω vs τρωει. Any helpful tips?