past simple* meest simpele vt
* start en stop in verleden
* vaak tijdsbepaling zoals yesterday/ in 2010/ last week
* verb+ed/ irr verb
* did + verb
I walked .. Did he buy
We didn't steal..
present perfect* start in vt + nu nog effect
* nooit tijdsbepaling in zin, dus géén yesterday oid
* to have + past participle (= voltooid deelwoord = verb3)
* let op wie, dus has of have
I have walked... Has he bought.. We haven't stolen