Present simple: She
walks to school ever day. (facts/habits)
Present continuous: She is walking to school now. (bezig)
Past simple: She walked to school yesterday. (afgelopen)
Past continuous: She was walking when her ankle snapped.
(was bezig op dat moment, evt. onderbroken)
present perfect: She has walked to school all her life.
(geeft aan dat het vroeger begon en nog bezig is)