You can say "I'm not coming" in a straightforward and clear manner. Here are a few ways to express it:
- "I won't be able to make it."
- "I'm afraid I can't come."
- "Unfortunately, I won't be attending."
- "Regrettably, I cannot make it."
- "I have to decline the invitation, I won't be there."
- "I'm sorry, but I won't be coming."
- "I have other commitments and won't be able to attend."
- "I won't be joining you."
- "I have to pass on this one, I won't be there."
- "Apologies, but I won't be coming."
It's essential to be polite and respectful when communicating that you won't be able to attend an event or meeting. If possible, provide a brief explanation for why you can't make it, but avoid going into too much detail unless it's necessary or you feel comfortable sharing the reasons.