Preterite vs Imperfect: Reference chart and buzz words list

This is a simple one page reference chart of common BUZZ words and cases for using either the preterite or imperfect tense. I usually photocopy it onto coloured cardstock where students can reference it quickly as they are slogging through my packet of fairytales deciding which verb to use. Its not rocket science, but my students tell me its been quite useful to them and that they have kept it through the years as they move on to higher levels.