taugen - to be good for
taugend - being good for getaugt - been good for du taugst - you are good for er/sie/es taugt - he/she/it is good for ich/er/sie/es taugte - I/he/she/it was good for wir/sie taugten - we/they were good for er/sie/es hat/hatte getaugt - he/she/it has/had been good for