1 Huddleston, S, "The Cambridge grammar of the English language" Cambridge University Press 2002
2 Swan, M, "Practical English grammar (2nd ed)" Oxford University Press 1995
3 Mackenzie, Mary, "Peaceful living" Puddle Dancer Press 2005
4 Eastwood, J, "Oxford guide to English grammar" Oxford University Press 1994
5 "Oxford English dictionaries online"
6 Rosenberg, M. B, "Nonviolent communication: A language of life" Puddle Dancer Press 2003
7 Biber, D., "Longman grammar of spoken and written English" Pearson Education Limited 1999
8 "Longman dictionaries of contemporary English online"
9 Yule, G., "Explaining English grammar" Oxford University Press 1998
10 Jespersen, O., "Essentials of English grammar" George Allen & Unwin Ltd 1933
1 Huddleston, S, "The Cambridge grammar of the English language" Cambridge University Press 2002
2 Swan, M, "Practical English grammar (2nd ed)" Oxford University Press 1995
3 Mackenzie, Mary, "Peaceful living" Puddle Dancer Press 2005
4 Eastwood, J, "Oxford guide to English grammar" Oxford University Press 1994
5 "Oxford English dictionaries online"
6 Rosenberg, M. B, "Nonviolent communication: A language of life" Puddle Dancer Press 2003
7 Biber, D., "Longman grammar of spoken and written English" Pearson Education Limited 1999
8 "Longman dictionaries of contemporary English online"
9 Yule, G., "Explaining English grammar" Oxford University Press 1998
10 Jespersen, O., "Essentials of English grammar" George Allen & Unwin Ltd 1933
11 Stevenson, R. L, "Dr Jekyll and Mr Hyde" Oxford University Press 2008
12 Halliday, M. A. K., "Cohesion in English" Longman Group Limited 1976
13 "Cambridge dictionaries online"
14 Dickens, C, "A tale of two cities" Oxford University Press 2008
15 Quirk, R., "A concise grammar of contemporary English" Harcourt Brace Jovanovich, Inc 1973
16 Quirk, R., "A comprehensive grammar of the English language" Longman 1985
17 Leech, G., "A communicative grammar of English" Longman 1994