A child watches as a woman works on a sewing machine.
The child is watching the woman.
The child watches the women is past tense of the same the child is watching the woman
exists e1 p1 x1.(exists e2 x2 x3 x4.(on(e2,x3) & n_machine(x3) & of(x3,x4) & n_sewing(x4) & Actor(e2,x2) & v_work(e2) & n_woman(x2)) & as(e1,p1) & Actor(e1,x1) & v_watch(e1) & n_child(x1))
exists e1 x1 x2.(n_woman(x2) & n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1))