Para los alumnos que necesiten reforzar previamente su inglés intermedio, aconsejamos las dos siguientes obras como bibliografía complementaria, y por tanto voluntaria:

1. Murphy, Raymond (2019, 5th edition), English Grammar in Use with Answers and Interactive e-Book. A Self-Study Reference and Practice Book for Intermediate Students of English. Cambridge: Cambridge University Press.
2. Louise Hashemi & Raymond Murphy (2012), English Grammar in Use Supplementary Exercises with Answers. Cambridge: Cambridge University Press.

Otras gramáticas complementarias que los alumnos pueden utilizar de forma voluntaria son las siguientes (comprobar sus ediciones más recientes):

1. Carter, R., R. Hughes & M. MacCarthy (2000), Exploring Grammar in Context. Upper Intermediate & Advanced. Cambridge: Cambridge University Press. Upper intermediate to advanced level.
2. Collins Cobuild Active English Grammar (2005), London: Harper Collins. Upper intermediate to advanced.
3. Collins Cobuild English Usage for Learners (2004), London: Harper Collins. Advanced level.
4. Foley, Mark & Diane Hall (2003), Longman Advanced Learners’ Grammar. London: Longman.
5. Greenbaum, S. Quirk, R. (1990), A Students’ Grammar of the English Language. London: Longman.
6. Vince, Michael (2003), Advanced Language Practice. MacMillan.

Para un estudio más profundo de la gramática inglesa, recomendamos los siguientes manuales (comprobar sus ediciones más recientes), también de manera voluntaria:

1. Biber, D., S. Conrad and G. Leech (2002), Longman Student Grammar of Spoken and Written English. London: Longman.
2. Biber, D., S. Conrad and G. Leech (2002), Longman Student Grammar of Spoken and Written English. Workbook. London: Longman.
3. Huddleston, R. & G.K. Pullum (2005), A Student’s Introduction to English Grammar. Cambridge: Cambridge University Press.
4. Greenbaum, S. & R. Quirk (1990), A Comprehensive Grammar of English. London: Longman.
5. Quirk, R., S. Greenbaum, G. Leech & J. Svartvik (1989), A Comprehensive Grammar of the English Language. London: Longman.
6. Leech, G. et al. (2002), A Communicative Grammar of the English Language. London: Longman.