Use 'carry out' when talking about finishing something specific, like a plan, research, or instructions.'Carry out' is more formal than just 'do,' and is often used for official or important tasks.
to put into effect or enforce something, especially a legal order, sentence, or official decision, often involving the use of authority or power.
The authorities are required by law to carry out the court's sentence without delay.
A: Did they really carry out the threat to close the factory? B: Yes, the decision was enforced last week.
It is the responsibility of the state to carry out capital punishment only in accordance with strict legal procedures.
Common mistake
✗The sentence was carried on by the court.
✓The sentence was carried out by the court.
'Carry out' = put into effect; 'carry on' = continue — don't mix them.
Tell it apart
They carried out the court order.
enforced / executed it
They carried on despite the order.
continued regardless
'Carry out' in this sense is used in formal or legal contexts, especially when referring to enforcing or executing official decisions, punishments, or threats. It is not appropriate for everyday tasks.Unlike the general sense of 'carry out' (to perform a task), this sense is restricted to formal or legal contexts and often involves authority or enforcement.