TY  - BOOK
AU  - Mackin Ronald
TI  - Exercises in English patterns and usage
U1  - 428.2 
CY  - Oxford
PB  - Oxford University Press
KW  - English pattern
KW  - English usage
N1  - V 1- The verb : Tenses, patterns and idioms; V 2- The verb : Tenses, patterns and idioms
ER  -