001: 17807
003: Starlibrary PMS 4.5
005: 20180430
020: ^a0-17-556193-1
066: ^aF..A
072: ^aconstruction with basic verbs
082: ^a425
100: ^aF. V. Bywater
240: ^aA PROFICIENCY
245: ^aA PROFICIENCY
260: ^c1990
650: ^anotes on the uses of basic tenses
650: ^apattern of verb tenses