Afrikaans and English are both Germanic languages, which means that a lot of the words, while not pronounce the same, nonetheless have the same meaning and spelling and others are very close.
Words that mean the same and are spelled the same
Pen, water, my, arm, bus, help, warm, in, myself, later, begin, by, bring, land, sing, wonder, winter
Words that are very similar (1 letter apart)
boat/boot, you/jou, group/groep, blood/bloed, all/al, good/goed, what/wat, day/dag, seek/soek, baby/baba, heart/hart, flag/vlag, how/hoe, find/vind, wash/was, now/nou, tour/toer, sister/suster, pack/pak