1. Biber, D. , Johansson, S. , Leech, G. , Conrad, S. and Finegan, E. (1999) Longman Grammar of Spoken and Written English. Harlow, England: Pearson Education. (This covers frequency information, lexico-grammar patterns and comparisons of use in conversation, fiction writing, newspaper writing and academic prose for all major structures in English, as well as including chapters on fixed phrases, stance and conversation.)