“…Various are the studies in literature that have exhaustively tackled the tense-aspect system of English: Bardovi-Harlig, 1992, 1994, 1998, and 2000Salaberry, 1999Salaberry, , 2000aSalaberry, , and 2000bAndersen & Shirai, 1995;Shirai, 1991 and2007;Robison, 1990 and1995;Ayon & Salaberry, 2008;and Collins, 2002.Those studies have drawn a clear distinction between tense and aspect as two confusing but related concepts in the study of temporal structure. They also shed light on the lexical aspect hypothesis developed by the functionalist school.…”