Past Simple
ww + ed / 2e rijtje
(+) I walked to school.
(-) You didn't go on holiday.
(?) Did we play football?
Tijdsbepaling van verleden tijd: in het verleden gebeurd en afgerond.
Yesterday, in 2020, last year, etc.
Present Perfect
have / has + ww + ed / 3e rijtje
(+) I have cleaned up my room.
(-) He hasn't watched that movie.
(?) Have they told you that?
In verleden begonnen, nu nog bezig.
In verleden gebeurd, nu nog invloed.
For, yet, never, ever, just, already, always, since.