Deutsch:
zertreten {vt} | zertretend | zertreten | er/sie zertritt | ich/er/sie zertrat | er/sie hat/hatte zertreten
Englisch:
to tread {trod; trodden, trod}; to tread down | treading; treading down | trodden; trodden down; trod down | he/she treads; he/she treads down | I/he/she trod; I/he/she trod down | he/she has/had trodden; he/she has/had trodden down