English Grammar Problem?

The present continuous is usually more natural when you are talking about arrangements on searching,examining, watching.
(1)To Tom:-
----What are you doing now? (not what will you do.Tom)
(2)looking for a watch
=look about for something
=in search of;
=be on the watch
---(not that watch);
It is the state of an affair
=looking for a watch
=eg:-Are you (Tom) still looking about for a watch ?
about=adverb;on all sides; nearly; up and down;;out;out aand about;
(3)look for something
=search for , try to find; try to shopping
eg:-Are Tom still looking for a watch ?
eg:-That smart fellow Tom is looking for a watch.
eg:-expect as in an eg:-It's too soon yet to looking for an expensive watch !
---Tom is looking about for a watch; be on the watch;in search of for a watch which does not include how to examine Tom's surroundings when he found the watch at the last moment !!!!!

Tom is looking for a watch now.
=湯姆現在正在找手錶（即還沒有找到，不知手錶去了何處）。
他現在一直在做的事：找手錶。