a threadbare excuse

Absolutely not! I beg to differ I can't say I couldn't I should have thought I think not I'd rather die I'm damned if I'm not fussed I'm not in the habit of I've heard that one before No fear! Not on your nelly! Nothing doing. Perish the thought!

الموافقة والقبول والإقرار التأكيد والجزم والتشديد الدحض والتفنيد