l saw them played basketball on the playgroumd是什麽時態
l saw them played basketball on the playgroumd.這個句子正確的表達是
l saw them play basketball on the playgroumd。(我看見他們在操場上打了籃球）
或者是：
l saw them playing basketball on the playgroumd.(我看見他們在操場上打籃球）是壹般過去時態的句子。要區別短語see sb. do sth.(看見某人做了某事）和see sb. doing sth(看見某人在做某事）