If you say	as in	your grammar sucks, because
breakfastses	That restaurant has the best breakfastses.	I wonder if dreaming of all that food has corrupted some brain cells.  The word is “breakfasts".
discourage against	We need to discourage against that type of behavior.	We should probably "discourage against" you talking in public.  You would “discourage that type of behavior" or “discourage someone from talking".
graduated	I graduated college in May.	Are you from the east coast?  I imagine a discussion of transitive and intransitive verbs would be lost on you.  So, unless you were born in the 1800’s, you should say “graduated from”.
him, her	Him [or her] and I went to the store.	Sorry to pick on you in the East again, but you are such easy targets.  There is no polite way to say this.  You should be back in the third grade.  “He” and “she” are the words you want.
I	They gave the prize to Sally and I.	You do not know the difference between the nominative and objective cases.  I am guessing you do not even know they exist.  The short answer is: use the word “me”.
ipso de facto	I saw shadows, ipso de facto, the lights must have been on.	You are combining and confusing “ipso facto” and “de facto”.  Use one or the other.  Use “ipso facto” when the fact or action is a direct consequence.  (He had died a week earlier, ipso facto, he could not have committed the crime.)  Use “de facto” when you mean “in practice” or “in reality”.  (Although not formally elected, she is the de facto leader of the group.)  If you regularly use “ipso facto” or “de facto”, you ipso facto and de facto probably need to find new friends or a new hobby.
I's	It is Joe and I's car.	Philadelphia, there is no such word as “I’s”.  You mean “my”.  Oh, and it should also be “Joe’s”.
me	Mike and me were the winners.	“Nominative case”, “subject”, “objective case”: you remember those lessons, don’t you?  Maybe you slept through those first ten years of grammar.  “I” is correct.
me and him	Me and him are going to the library.	While you are there, page through some grammar books.  See "him, her"and "me" above.  Use "He and I" in this example.  By the way, the first person (I, me, my, we, us) always goes last in a compound usage.  If this is too technical, those grammar books should help.
mines	My apples are green; what color are yours? Mines are red.	Hey, you in the Midwest, take note!  “Mine” is already possessive.  You do not need the “s”.
myself yourself	Myself and Mary went to the party. They appraised it for myself. How are you?          I'm fine, and yourself?	OK, you easterners: if you use any word with “self” in it more than twice a year, you are probably misusing it.  Reflexive is undoubtedly beyond your comprehension, so stick with “I”, “me” and “you”.
runned	They have a well-runned program.	Philadelphia, please do not help your children with their homework.  The word is “run”, or, in this case, “well-run”.
seasonable	The weather will be seasonable today.	This is for you psuedo-intellectual weather reporters trying to impress us with four-syllable words.  Please take note, the word is “seasonal”.  That extra syllable makes you sound ignorant (or, perhaps, “stupidable”).  It is no wonder no one takes you seriously.
seen	There were good things we seen in the files.	The word is “saw”.  Also, your sentence is awkward.  I would recommend: “We saw a lot of good things in the files”.
that	She is the one that baked the cookies.	If you are referring to a person, the correct usage is “who”.  The word “that” is used for inanimate or non-human objects.  (Even though Pookums the cat is your best friend, it is a “that” and not a “who”.)
y’all	I am glad y'all could come.	To everyone south of the Mason-Dixon line: “y’all” is not a word.  I know this is a shock, but it is true.  Also, if you say “you all”, you are still wrong! Ouch!  The word “you” implies “all”.  Please just say “you”.
y’all’s	Y'all's dog is so cute, I could just kiss him!	If “y’all” is not a word, did your really think “y’all’s” was going to be one?  The word is “your”.  Use it.  By the way, it is “your”, even if there is more than one “you”.
your guys’s	Is this your guys's house?	This is similar to “y’all” and “y’all’s” above.  I guess this is supposed to be the possessive of “you guys”, but even “you guys” is gramatically suspect.  Just say “you”.  The possessive is “your”.