|Look up we, us, our, ours, or ourselves in Wiktionary, the free dictionary.|
- we: the nominative (subjective) form
- us and 's: the accusative (objective; also called the 'oblique'.:146) form
- our: the dependent genitive (possessive) form
- ours: the independent genitive (possessive) form
- ourselves: the reflexive form
We has been part of English since Old English, having come from Proto-Germanic *wejes, from PIE *we-. Similarly, us was used in Old English as the accusative and dative plural of we, from PIE *nes-. The following table shows the old English first-person plural and dual pronouns:
By late Middle English the dual form was lost and the dative and accusative had merged.:117 The ours genitive can be seen as early as the 12th century. Ourselves replaced original construction we selfe, us selfum in the 15th century, so that, by century's end, the Middle English forms of we had solidified into those we use today.:120
We is not generally seen as participating in the system of gender. In Old English, it certainly didn't. Only third-person pronouns had distinct masculine, feminine, and neutre gender forms.:117 But by the 17th century, that old gender system, which also marked gender on common nouns and adjectives, had disappeared, leaving only pronoun marking. At the same time, a new relative pronoun system was developing that eventually split between personal relative who and impersonal relative which. This is seen as a new personal / non-personal (or impersonal) gender system.:1048 As a result, 
- Subject: We're there; us being there; our being there; we planned for ourselves to be there.
- Object: They saw us; She pointed them to us; We though about ourselves.
- Predicative complement: They have become us; We eventually felt we had become ourselves.
- Dependent determiner: We reached our goals; We humans aren't perfect; Give it to us students.
- Independent determiner: This is ours.
- Adjunct: We did it ourselves.
The contracted object form 's is only possible after the special let of let's do that.
- Relative clause modifier: we who arrived late
- Determiner: Not a lot of people know the real us.
- Adjective phrase modifier: Not a lot of people know the real us.
- Adverb phrase external modifier: not even us
The editorial we is a similar phenomenon, in which an editorial columnist in a newspaper or a similar commentator in another medium refers to themselves as we when giving their opinion. Here, the writer casts themselves in the role of spokesperson: either for the media institution who employs them, or on behalf of the party or body of citizens who agree with the commentary. The reference is not explicit, but is generally consistent with first-person plural.
The author's we, or pluralis modestiae, is a practice referring to a generic third person as we (instead of one or the informal you):
- By adding four and five, we obtain nine.
- We are therefore led also to a definition of "time" in physics. — Albert Einstein
We in this sense often refers to "the reader and the author" because the author often assumes that the reader knows and agrees with certain principles or previous theorems for the sake of brevity (or, if not, the reader is prompted to look them up). This practice is discouraged by some academic style guides because it fails to distinguish between sole authorship and co-authorship. Again, the reference is not explicit, but is generally consistent with first-person plural.
Inclusive and exclusive we
Some languages distinguish between inclusive we, which includes both the speaker and the addressee(s), and exclusive we, which excludes the addressee(s). English does not make this distinction grammatically, though we can have both inclusive and exclusive semantics.
- Take this outside. (exclusive, 2nd person)
- Let's take this outside. (inclusive, 1st person)
We is used sometimes in place of you to address a second party: A doctor may ask a patient: "And how are we feeling today?". A waiter may ask a client: "What are we in the mood for?"
According to the OED, the following pronunciations are used:
- Huddleston, Rodney; Pullum, Geoffrey K. (2002). The Cambridge grammar of the English language. Cambridge University Press.
- Lass, Roger, ed. (1999). The Cambridge history of the English Language: Volume III 1476–1776. Cambridge: Cambridge University Press.
- "we | Origin and meaning of we by Online Etymology Dictionary". www.etymonline.com. Retrieved 2021-03-24.
- "us | Origin and meaning of us by Online Etymology Dictionary". www.etymonline.com. Retrieved 2021-03-24.
- Blake, Norman, ed. (1992). The Cambridge history of the English Language: Volume II 1066–1476. Cambridge: Cambridge University Press.
- "our | Origin and meaning of our by Online Etymology Dictionary". www.etymonline.com. Retrieved 2021-03-24.
- "who - Middle English Compendium". quod.lib.umich.edu. Retrieved 2021-03-20.
- "which - Middle English Compendium". quod.lib.umich.edu. Retrieved 2021-03-20.
- "editorial we". TheFreeDictionary.com.
- Publication Manual of the American Psychological Association (4 ed.). Washington, DC: American Psychological Association. 1994. p. 30. ISBN 1557982414.
- Blanpain, Kristin (2008). Academic Writing in the Humanities and Social Sciences: A Resource for Researchers. Leuven: Voorburg. p. 43.
- Wallwork, Adrian (2014). User Guides, Manuals, and Technical Writing: A Guide to Professional English. New York: Springer. p. 153.
- Goldbort, Robert (2006). Writing for Science. New Haven, CT: Yale University Press. p. 18.