现在完成时中常见短暂性动词变延续性动词

①arrive at/in sw. get to/reach sw. come/go/move to sw.

→ be in sw./at school/at home/on the farm/be here/be there

②come/go back, return → be back come/go out → be out

③become → be

④close → be closed open → be open

⑤get up → be up；die → be dead；leave sw. → be away from sw.

fall asleep/get tot sleep → be asleep；finish/end → be over；

marry → be married；

⑥start/begin to do sth. → do sth. ；begin → be on

⑦borrow → keep；lose → not have ；buy → have ；put on → wear

catch/get a cold → have a cold；get to know → know

⑧have/has gone to → have been in

⑨join the league/the Party/the army

→ be a league/a Party member/a soldier

→ be a member of the league/the Party

→ be in the league/the Party/the army