At which media contributes to democracy in South Africa​

Betray, destroy, and obey do not need to be changed to add the suffix -ed, because the "y" at the end of each word is preceded by a vowel  (so  they would be spelled  "betrayed," "destroyed," and "obeyed").

but hurry is different; it has to  be spelled "hurried" because the "y" at the end of "hurry" is preceded by a consonant.

Use hellotalk or hinative! there are always real people from all over the world! i have a few friends in korea i talk go to me!