My students reluctate against thinking to any degree past their preferred form of knee-jerk reactions:

"(v. i.) To struggle against anything; to resist; to oppose. " (onelook.com)

Thanks for this one, Bingley. It's good to have still another word in my head when I'm attempting to teach such ordeals as irregular verbs. And here's a regular one you've provided for the conjugation chart--with the challenge of a slight spelling shift to drop that final 'e' for the present participle!