Account for the relationship as it is now
Use a tone that fits the present relationship, not the closeness, authority, or access that existed in the past. For a message about how to apologize for lying to a teacher, use this factual base: name the assignment, rule, person, or shared work affected and do not conceal the extent of the problem.
Ask without assigning an obligation
Explain what you hope for while making decline, delay, or a different format genuinely acceptable. Ask which repair is permitted, complete your own work, and accept a fair academic consequence. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Keep the ending honest
Do not pressure a teacher or classmate to erase a consequence or support a false account. Report bullying, threats, abuse, and safeguarding concerns to a trusted adult or official school channel. Avoid future promises, guilt, flattery, or nostalgia that imply the recipient owes you access.