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Grammatik 6.3 ~ Commands
Ruf sie an, bitte!
Call her, please.
or 
Ruf sie bitte an!
Gehen Sie nach Hause!
Go home (formal).
Kommt mit!
Come with (plural)!
Gib es mir!
Give me it!
Notice that in these sentences there are no subjects (except for #2). In German, as in English, there is a 
commandative form
, a way to demand something using an understood you. In English, there is only one 
you-form and one command form. In German, since there are three you's, there are three ways to 
command.
If the subject is singular (
du
), then the verb has no ending. If it is irregular, it takes the du-form, such as 
in essen (Iss!) or lesen (Lies!). If there is a plural subject (
ihr
), then the verb takes the ihr-form. 
Nothing else is changed. Most of the time, ihr-commands are used with children, but that is not always 
the case. In both of these sentences, the du or ihr is omitted.

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Formal is normal. The 
Sie
stays (after the verb) and the verb is in its formal form. Although it is 
worded like a question, in written or spoken form, it is easy to tell the difference.
Section 2.02 ~ Zürich, Switzerland
Lesson 2.06 • Mathematik 
Lernen 7 ~ Zählen von 13 bis 100
Once you have memorized the numbers from 1 to 12 (see 
Lernen 3
), counting higher in German 
becomes very much like counting in English. From 13 to 19, add 
-zehn
(10; "-teen" in English) after the 
cardinal number root:
13 – 
dreizehn
(irregular in English: 'thirteen')
14 – 
vierzehn
15 – 
fünfzehn
16 – 
sechzehn
(note that the 's' in 
sechs
is dropped)
17 – 
siebzehn
(note that the 'en' in 
sieben
is dropped)
18 – 
achtzehn
19 – 
neunzehn
Above 19 the counting system is constant: add 
-zig
("-ty" in English) to the cardinal root. Thus, we get:
20 – 
zwanzig
21 – 
einundzwanzig
(note: 'one-and-twenty')
22 – 
zweiundzwanzig
(note: 'two-and-twenty')
And the same for 30, 40, 50....etc.
30 – 
dreißig
(this is an exception to the -zig Rule)
40 – 
vierzig
50 – 
fünfzig
60 – 
sechzig
70 – 
siebzig
80 – 
achtzig
90 – 
neunzig
100 – 
hundert
So, combining these, we get:
34 – 
vierunddreißig
(note: 'four-and-thirty')
143 – 
hundertdreiundvierzig
(note: 'hundred-three-and-forty')
170 – 
hundertsiebzig
199 – 
hundertneunundneunzig
It would be excellent practice towards learning these numbers by counting (in German, of course) from 

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1 to 199—or counting along any continuous sequence that comes to mind. For example, start with your 
age and count to 50 (count down if appropriate).