VERB STEMS AND ENDINGS

In German, different subjects take different verb endings, similar to the alternation in English between I do and he does. The base form in the dictionary, or infinitive, is the starting point. The verb stem is the infinitive minus -en. Add these endings to the stem:
 

I ich -e
you (sing) Sie -en
he er -t
she sie -t
it es -t
"people" man -t
we wir -en
you (plural) Sie -en
they sie -en

Infinitive form: bleiben "to stay"
 

I am staying ich bleibe
you are staying Sie bleiben
he is staying er bleibt
she is staying sie bleibt
it is staying es bleibt
people are staying man bleibt
we are staying wir bleiben
you are staying Sie bleiben
they are staying sie bleiben

If a verb has a stem ending in d- or t- , use the ending -et, not -t:
 

it costs es kostet
he finds er findet

The third person singular of the German verb haben is hat. The other present tense forms are regular.

VOWEL CHANGING VERBS

Some verbs alter their vowels when the subject is er, sie, es, or man. This is similar to the alternation between English I cry and he cries. Here are the vowel changing verbs we have had:
 

Infinitive Vowel Change
fahren* er, sie, es, man fährt
  he, she, it drives, "people" drive
laufen er, sie, es, man läuft
  he, she, it walks, "people" walk
geben er, sie, es, man gibt
  he, she, it gives, "people" give
nehmen er, sie, es, man nimmt
  he, she, it takes, "people" take
sehen er, sie, es, man sieht
  he, she, it sees, "people" see
sprechen er, sie, es, man spricht
  he, she, it speaks, "people" speak
halten er, sie, es, man hält
  he, she, it holds, "people" hold
essen er, sie, es, man isst
  he, she, it eats, "people" eat

*With respect to vowel changing, compound verbs such as abfahren work like the simple verb from which they are derived, i.e. fahren: abfahren, er fährt…ab.

Vowel change verbs are indicated in the glossary as follows: essen (isst) : to eat.