S nt n swithout
It is not always n
ssaryto m ntion th ag nt. Th re ar s v ralr asons for
Br d ,smotorbikew s stolen l st night.
Agent not known:
If w kn w wh had stol n it, w would m ntion th name of th p rson.
But w don,t know and the ag nt is not m ntion d.
Ag nt obvious:
e protest rw s rrested'
ssaryto add th words .by th poli ,, b aus w know that it
It is not n
is always th poli who do this. Howev r, it is possibl to add th s words if
W Want to.
A lot of E glish gramm r books re sold every e r.
xa tly who s lls th books is not important. If it was important we ould
lse b and th nam s of th p opl o shops who s ll the books.
Verbs whi h have obj ts are all d transitiv v rbs ( xamplle:help),In this
s nt n ,,th old lady, is th obj t.
crossthe ro d'
A young m n helped the old l d
Verbs whi h do not hav obi
w Iks to oII g '
Di tionari s show this information with T or I. only transitiv v rbs an be
young m .
The old l dy w s help d crossthe ro d b
all d intransitiv v rbs ( xampl :