Grammar fix
dig into
investigate deeply
To investigate something carefully and in some depth.
phrasal verb
How oftenCommon
LevelB2
Used inSpeech & writing
Hear it in context
Notice where the phrase sounds natural.
The journalist dug into the company's financial records and found several irregularities.
When something goes wrong at work, I usually dig into the details before I decide who was responsible.
Fix the pattern
One small grammar move makes it sound right.
Not: We need to dig in the complaint.
Say: We need to dig into the complaint.
Use 'dig into' when you mean investigate; 'dig in' does not take the matter as a direct object.
Don't confuse it
Other ways to say it
Find out what really happened
How formalConversationalFormal
dig intoYou're here · Informally investigating a matter in some depth.
look intoExamining a complaint, problem, or situation to learn more.investigateExamining a matter systematically, sometimes through an official inquiry.