TY  - BOOK
AU  - Maule, David
TI  - The Naked verb: the meaning of the English verb tenses
SN  - 0333544676
U1  - 428.24076 
PY  - 1991///
CY  - London
PB  - Macmillan Publishers
KW  - English language - Verb - Problems, exercises
ER  -