The phrasal verb "nag at" is primarily used in informal speech and writing. It describes a situation where a particular thought, concern, or problem persistently bothers or worries someone. This phrasal verb is often used to convey a sense of irritation or persistent mental discomfort caused by unresolved issues or unsettled feelings. Common usage contexts include narratives about personal experiences or emotions, where someone might say a thought is "nagging at them" when they can't shake off the worry or preoccupation. While "nag at" is not typically used in formal contexts, it can effectively describe an underlying feeling of unease in both written and spoken communication. Examples might include dialogues or informal reflective writing. As with many phrasal verbs, it adds a conversational tone and nuance to the expression of emotional states.
B1
PreIntermediate
1. To criticize or complain to someone repeatedly about small matters.
She kept nagging at him to mow the lawn.
My parents always nag at me to clean my room.
2. To pester or bother someone persistently or annoyingly with demands or complaints.
The teacher began to nag at the students for not completing their homework.
He felt guilty because he knew his words would nag at her for a long time.
