Look at each of the words:
tasted
tasteful
tasteing
tastey
as you can see, the last two words should be spelled tasting and tasty, but the first two words are correct without dropping their e's.
So the answers are the suffixes
-ed and -ful
Each of these are indeed different types of pronouns. What in specific do you need help with? :)
Anything specific to write the essay on
