Personal Pronouns : Part Two — Second person pronouns

Declen­sion of Cur­rent Sec­ond Per­son Per­son­al Pro­nouns
Sub­ject Object Pos­ses­sive Adjec­tive Pos­ses­sive Pro­noun Reflex­ive Num­ber Gen­der
SECOND PERSON
you you your yours your­self sin­gu­lar neu­tral
you you your yours your­self plur­al neu­tral

In times gone by Eng­lish had a clear dis­tinc­tion between sub­ject and object and between sin­gu­lar and plur­al in its sec­ond per­son pro­nouns, how­ev­er after the 1600s this usage became fuzzy and even­tu­al­ly dropped entire­ly with you tak­ing on all four roles.
While no-one seems par­tic­u­lar­ly to care (or even under­stand) about the subject/object dis­tinc­tions, Eng­lish syn­tax makes the subject/object dis­tinc­tion clear.
How­ev­er there are com­mon prob­lems with singular/plural using the same word. Don’t believe me? Con­sid­er this:
You are invit­ed to attend my birth­day.
Is such an invi­ta­tion addressed to one per­son, or a whole fam­i­ly?
You said you would let me enroll.
Is this speak­er accus­ing the poor lad behind the counter, or the insti­tu­tion?
Most of the time there are oth­er clues to guide us.
Good morn­ing class, how are you this morn­ing?
The teacher is obvi­ous­ly address­ing the class as a whole. Yet these syn­tac­tic clues are not always present, and some­times peo­ple just don’t feel that they have made it clear enough, so we see things like “you all” or “you both” and less for­mal­ly “you guys” or “you lot” and even the use of “youse/yous”.
The use of yous is not a per­fect solu­tion either, for a start it has the stig­ma of short­age of edu­ca­tion. It shows up the use of what seems to be a rule in Eng­lish (ie plur­al of a noun is formed by adding an s to the end of the word) but this is incor­rect­ly applied to a pro­noun. Com­pli­cat­ing things fur­ther, yous is not always used in a plur­al sit­u­a­tion. Regard­less the word is now in the lan­guage, and you will find it in any recent dic­tio­nary, although there is still debate about how it should be spelt.
You also gets used as an indef­i­nite pro­noun, as in:
After all that, you’d think he would com­pro­mise.
In such sen­tence you is an infor­mal sub­sti­tute for one, a pro­noun which is some­where between sec­ond and first per­son (I’ll deal with one in a lat­er sec­tion). Also writ­ers of gov­ern­ment doc­u­ments are often urged to trans­late:
All tax returns must be filed by Octo­ber 31.
into
You must file your tax return by Octo­ber 31.
Which may seem very direct, but with more use has become accept­ed.
What is espe­cial­ly inter­est­ing about all this is that Eng­lish did once have a very clear dis­tinc­tion between both singular/plural and between subject/object in its sec­ond per­son pro­nouns.

Declen­sion of Old Sec­ond Per­son Per­son­al Pro­nouns
Sub­ject Object Pos­ses­sive Adjec­tive Pos­ses­sive Pro­noun Reflex­ive Num­ber Gen­der
SECOND PERSON
thou thee thy thine thy­self sin­gu­lar neu­tral
ye you your yours your­self plur­al neu­tral

Now how­ev­er these pro­nouns are only found in the old trans­la­tion of the Bible (specif­i­cal­ly the King James Bible). Even in Shake­speare’s work the use of these words is not strict­ly main­tained.
thornA note about Ye which gets called into ser­vice for qua­si-old shop signs such as “Ye Olde Tea Shoppe”, this is not (and nev­er was) a pro­noun. The Y is an attempt to match the Old Eng­lish char­ac­ter “thorn” (bor­rowed from the runic alpha­bet, see image) which rep­re­sent­ed “th”. So Ye is sim­ply The. In Tudor hand­writ­ing and print­ing, y was used instead of th in the and a num­ber of oth­er words: that, they, this (and some­times them, their, this) to save space. It ceased to be com­mon prac­tice by the eigh­teenth cen­tu­ry, but it lingers in the Ye of pub and shop signs, wher­ev­er the whiff of antiq­ui­ty seems to be a com­mer­cial asset.
Cor­rect use of ye and you from the King James Bible:
Ye have not cho­sen me; I have cho­sen you.
Also exam­ples of thou and ye:
O thou of lit­tle faith.
Said by Jesus to Peter, when the dis­ci­ple seemed to be think­ing twice about his abil­i­ty to walk on water.
O ye of lit­tle faith.
Addressed to the crowd assem­bled to hear the ser­mon on the mount.
For a short while, before drop­ping from the lan­guage entire­ly thou/thee took on use for friend­ly and inti­mate address to an indi­vid­ual, while ye/you was used for neu­tral, pub­lic and more dis­tant address, to either and indi­vid­ual or a group. But this dis­tinc­tion was short-lived in Eng­lish even though still present in French, Ger­man and oth­er mod­ern Euro­pean lan­guages.
Also see:
Part Zero — The prob­lem with the Eng­lish lan­guage is you!
Part One — First per­son pro­nouns
Part Three — Third per­son pro­nouns
Part Four — Mis­cel­la­neous, Con­clu­sion and Ref­er­ences