Grammar fix
roll over
carry into next period
To move unused money, credit, data, or another allowance into the next period.
phrasal verb
How oftenCommon
LevelB2
Used inSpeech & writing
Hear it in context
Notice where the phrase sounds natural.
Any data you don't use this month will roll over to the next month.
My phone plan's pretty good actually, because whatever data I don't use rolls over, so I never really run out.
Fix the pattern
One small grammar move makes it sound right.
Not: My unused data carries on to next month.
Say: My unused data rolls over to next month.
'Carry on' means continue doing something; for unused data or money moving into the next period, say 'roll over' (or 'carry over').
Don't confuse it
Other ways to say it
Move what's left into the next period
What's movedHoliday daysMoney/data
carry overHoliday days or unfinished items into next period.carry forwardAccounts and balances; a bit more formal.
roll overYou're here · Phone data, credit or savings into the next period.