speak spoke spoken ride rode ridden run ran run buy bought bought see saw seen catch caught caught come came come have had had go went gone sing sang sung read read read get got gotten draw drew drawn live lived lived listen listened listened make made made tell told told give gave given write wrote written wear wore worn open opened opened teach teached teached spell spelt spelt learn learned learned eat ate eaten take took taken fly flew flown swim swam swum forget forgot forgotten sleep slept slept think thought thought begin began begun / start started started leave left left meet met met know knew known lecture lectured lectured