1. Davies Mark. 2008. The NOW Corpus (News on the Web): 10.3 billion words 2010–present. www.english-corpora.org/now/ [accessed December 2021].
2. Berman, Arlene. 1970. Agent, experiencer, and controllability. In S. Kuno (ed.), Mathematical linguistics and automatic translation [Report NSF-24]. Cambridge, MA: Harvard University.
3. Entailment and the meaning of structures;Bolinger Dwight;Glossa,1968
4. Carnie, Andrew. 2013. Syntax: A generative introduction. 3rd ed. John Wiley and Sons.
5. Chomsky, Noam. 1981. Lectures on government and binding. Dordrecht: Foris.