Grammar fix
on paper
looks good theoretically
Used to say that something seems suitable or successful before it is tested in real life.
expression
How oftenCommon
LevelB2
Used inSpeech & writing
Hear it in context
Notice where the phrase sounds natural.
On paper, the job sounds perfect, but the two-hour commute would be exhausting.
On paper, online courses are very convenient, but I learn better when I can ask a teacher questions directly.
Fix the pattern
One small grammar move makes it sound right.
Not: In paper, the plan looks perfect.
Say: On paper, the plan looks perfect.
The fixed preposition is 'on', not 'in'.
Don't confuse it
Other ways to say it
Should work, but not yet proven
How formalConversationalFormal
on paperYou're here · Something looks workable before real conditions are taken into account.
in theorySomething should work, though reality may be different.in principleThe basic idea allows it, though practical obstacles may remain.