In some cases a pronunciation of the "normal"
way of imperfect would be quite difficult. This is the
case when the stem of the word ends on a t or d; and
in some cases of m or n. If you like you could try:
2nd
person singular of present tense of antworten(=
to answer) = du antwortst
And because this is not so easy to be done (you might
have noticed) an -e is put in between.
du antwortest
This happens in present tense as well as in past tense.
atmen stem: atm(e)
antworten stem: antwort(e)
rechnen stem: rechn(e)
to breathe
to answer
to calculate
ich atmete
ich antwortete
ich rechnete
du atmetest
du antwortetest
du rechnetest
er/sie/es atmete
er/sie/es antwortete
er/sie/es rechnete
wir atmeten
wir antworteten
wir rechneten
ihr atmetet
ihr antwortetet
ihr rechnetet
sie atmeten
sie antworteten
sie rechneten
The stem itself does not change and the endings are (apart from the extra -e) the same as in the conjugation of weak verbs.
