2.1.1 使役動詞 make, have, get - 台灣金融研訓院 TABF
155 They heard the word repeated many times. 2.1.2.3 感官動詞之被動式 S be seen/heard/felt/etc. + V-ing (動作的過程) 或 to V (整個動作已結束) 或 p.p. (被…) Someone saw him dancing. He was seen dancing. Someone saw him leave. He was seen ......