Give reasons and disagree
State a view, support it, and identify disagreement.
I prefer the evening class because I work during the day links a preference to a reason. The reason should actually support the view. Use I am not sure whether… when uncertainty is real.
Locate the disagreement: I agree that the topic is useful, but I am concerned about the cost. This recognises one point while raising another. Politeness need not hide meaning. If you cannot attend, say I cannot attend on Monday.
Practise twice: first a view and reason, then a fair concern from the other person and your response. The aim is to identify whether the disagreement concerns time, cost, facts, or priorities.
Make your understanding visible
You prefer meeting in person, but your friend lives far away. Write two sentences addressing both.
Compare with a reference response
I prefer meeting in person because conversation feels easier. I understand that travel takes time for you; could we meet online this week? Recognising a cost does not erase your preference.
Sources & further reading
Original lesson, examples and practice