i am regretted ( )to the meeting last week

i am regretted ( )to the meeting last week john regretted not going to the meeting last week 9.John regretted to the meeting last week. John regretted _____ to the meeting last week. 30.John regretted to the meeting last week. John regretted not having been going to the meeting last wee （I drove to Shanghai for the meeting last week ）so I had a f I drove to Shanghai for the meeting last week so I had a few （ i drove to shanghai for the meeting last week ） so i had a John regretted ________to the party last week, for it seemed I regretted to tell you the news. About ______students attended the meeting last week.