klopf doch mal an
klopfen doch mal an
imp adv adv adv
klopf doch mal an .
k l ɔ p f WORD_BOUNDARY d ɔ x WORD_BOUNDARY m aː l WORD_BOUNDARY  a n WORD_BOUNDARY
k l o p f WORD_BOUNDARY d o c h WORD_BOUNDARY m a l WORD_BOUNDARY a n WORD_BOUNDARY