mopping – floor

mops/mop -floor

helping-mother

helps/help-mother

walking-school

walks/walk-school

dancing- stage

dances/dance-stage

cleaning-house

cleans/clean-house

playing-field

plays/play-field

reading-tree

reads/read-tree

wiping-cloth

wipes/wipe-cloth

cooking – kitchen

cooks/cook-kitchen

watching- television

watches/watch -kitchen