do
doing
clean
cleaning
read
reading
paint
painting
study
studying
walk
walking
draw
drawing
wake
waking
eat
eating
comb
combing
write
writing
close
closing
go
going
brush
brushing
take
taking
see
seeing
drink
drinking
jump
jumping
wait
waiting
practice
practicing
work
working
talk
talking
look
looking
play
playing
climb
climbing
learn
learning
make
making
have
having
open
opening
watch
watching
teach
teaching