hear,begin,write,sweep的三单,ing形式,过去式

三单 ing形式 过去式
hear hears hearing heard
begin begins begining began
write writes writing wrote

sweep sweeps sweeping swept

hears,begins,writes,sweeps
hearing,beginning,writing,sweeping
heard,began,wrote,swept

hears,hearing,heard
begins,beginning,began
wtites,writing,wrote
sweeps,sweeping,swept