What is the difference between 正在 and 在?
I checked these two words on this dictionary page: Chinese Dictionary | Chinese-English Dictionary Online
It offers very detailed information:
zài
在
Translation :
in
in
be
at
exist
depend on
Examples and usages:
Examples 1 : 在
prior at
after
on top of
Examples 2 : 在白天
in the day
by day
in the daytime
Examples 3 : 在晚上
in the evening
at night
zhèng zài
正在
Translation :
is
be being
in process of
Examples and usages:
Examples 1 : 正在
Is
bein
just
Examples 2 : 正在那时
just then
at that moment
at the moment
Examples 3 : 正在考虑
in question
Being considered
Is considering
Hope it helps!