Verbs conjugated like 'förbättra'
abbreviera,
abdikera,
abonnera,
abortera,
abradera,
absolvera,
absorbera,
abstrahera,
accedera,
accelerera,
accentuera,
acceptera,
acklimatisera,
ackommodera,
ackompanjera,
ackordera,
ackreditera,
ackumulera,
ackvirera,
adaptera, etc. (List truncated at 20 verbs)