"Ski" plus "ed" makes "skied." When in doubt, remove an "i" and see if it fits. Reflect on the simplicity of past tenses, typically adding just "-ed." ADVERTISEMENT How Do You Spell Skied Correctly? Incorrect: Weskiieduntil the sun set. ...
"Interupted" is an incorrect spelling. The right spelling is "Interrupted," meaning having been halted or disturbed in a process or activity.