When to use essen, isst, esse?
I might be wrong but if I understand correctly. I think
Essen - used with plural words like Wir / Sie
Esse - used when making reference to ones self example Ich (I) esse
Isst - used when making reference to someone else, sxample Du (you) isst
Am I correct about the use of these words?
Yes, pretty much.
Essen verb conjugation, present tense:
Actually I think you can kind of use "essen" for animals, what you can't is use "fressen" for people. Unless you want to insult them of course...
Also if you are capitalizing Essen you have the noun for "food", which is the same for singular and plural (the article still changes)