TY  - BOOK
AU  - Palmer,Francis Beaufort
TI  - Modality and the English modals
T2  - Longman linguistics library
SN  - 0582551099
PY  - 1979///
CY  - London
PB  - Longman
KW  - English language
KW  - Verb
KW  - Modality
N1  - Bibl.: p. 186-190 and Index
ER  -