Meet-->met
help-->helped 
Speak-->spoke
Live-->lived
Write -->wrote 
Study-->studied 
Do-->did
Enjoy --->enjoyed 
Drive--drove
Plan---planed
Put---put
Stop---stoped
Sing---sang
Agree --agreed

meet-met                     enjoy-enjoyed 
help- helped                 drive-drove 
speak-spoke                 plan-planed
live- lived                      put-putted
writte-wrote                  stop-stoped
study-studyed              sing-sang
Do-did                         agree-agreed