A pronoun is a word that is used instead of a noun to represent that noun. In English, pronouns are a word class/ part of speech and there are several kinds: subject (e.g. he, they), object (e.g. him, us), relative (e.g. that, which), reflexive (e.g. ourselves, itself), indefinite (e.g. no one, none), possessive (e.g. our, their), interrogative (e.g. which, what), demonstrative (e.g. this, those), reciprocal (each other, one another), quantifiers (e.g. all, one).
Students often don’t realise how important pronouns are to understanding spoken or written language or to expressing themselves clearly, particularly in writing. Pronouns are really important in establishing the cohesion of a text.
Carter, R. and McCarthy, M. (2006). Cambridge Grammar of English. Cambridge: Cambridge University Press.
Parrott, M. (2010). Grammar for English Language Teachers, second edition. Cambridge: Cambridge University Press.
Thornbury, S. (1997).About Language. Cambridge: Cambridge University Press.
Thornbury, S. (2006). An A-Z of ELT. Oxford: Macmillan.