pick
pick / picked / picked / picking
brush
brush / brushed / brushed / brushing
go
go / went / gone / going
feed
feed / fed / fed / feeding
play
play / played / played / playing
exercise
exercise / exercised / exercised / exercising
take
take / took / taken / taking
make
make / made / made / making
drink
drink / drank / drunk / drinking
climb
climb / climbed / climbed / climbing
wake up
wake up / woke up / woken up / waking up
ride
ride / rode / ridden / riding