Tomislookingforhiskeytohisbike
Hecan’tfindit
Hehaslosthiskeytohisbike
Helostitashorttimeagoandhestilldoesn'thaveit
Hecan’tridehisbiketogotoschool
Helooksworried
DefinitionDefinition2
过去某一时间点发生的动作持续到现在或还将持续下去
过去某一时间点发生的动作对现在产生影响
IhavelearnedEnglishfortenyears
IhavelearnedEnglishfortenyears
Wehavevisitedyourschoolbefore
Wehavevisitedyourschoolbefore
Hehaslosthiskeytohisbike
Hehaslosthiskeytohisbike
HehaslivedinLondonsincetenyearsHehaslivedinLondonsincetenyearsago
have/has+pastparticipleA:I’velookedatyourresume
Iseeyouworkinahotel
B:Yes,Ido
A:Howlonghaveyouhadthisjob
B:I’vehadthisjobforonlyashottime
ButIhavealotofexperienceinthehotelbusiness
Infact,myparentsownahotelinMexico
A:Howlonghaveyourparentsownedahotel
B:Mostoftheirlives
A:Haveyouseenyourparentsrecently
B:Yes,Ihave
Mymother