to focus on
[verb]
to direct one's attention, energy, or efforts toward a particular goal, task, or objective
Ex:
Phrasal Verbs Using 'On' & 'Upon' - Striving, Risking, or Revealing (On)
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to inform on
[verb]
to provide information to law enforcement or authorities about someone's actions, particularly illegal or unethical actions
Ex:
The
undercover agent
gathered
evidence
to
inform on
the
drug cartel
's
leaders
.
to insist on
[verb]
to demand something firmly and persistently
Ex:
They
insisted on
their
right
to
a
full
refund
for
the
faulty
product
.
to let on
[verb]
to reveal information that was meant to be kept a secret
Ex:
Do
n’t
let on
that
you
saw
me
,
I
do
n’t
want
anyone
to
know
I
’m
here
.
to tell on
[verb]
to give away information one has obtained about someone, particularly to someone in authority
Ex:
She
told on
her
brother
for
sneaking
out of
the
house
at
night
.
to look on
[verb]
to watch an event or incident without getting involved
Ex:
The
bystanders
looked on
in
horror
as
the
accident
unfolded
before
their
eyes
.
to spy on
[verb]
to secretly observe someone or something with the intention of gathering confidential or hidden information
Ex:
Concerned
about
potential
theft
,
the
homeowner
decided
to
install
cameras
to
spy on
the
surroundings
of
the
property
.
to work on
[verb]
to focus one's effort, time, or attention on something in order to achieve a particular goal
Ex:
The
team
is
working on
strategies
to
increase
customer
satisfaction
.