Anata wa henjin desu. You are a strange person.
Wa is the subject marker.
Desu = 'is'
desu is the polite present form of 'is'
These can be substituted:
dewa arimasen = 'is not'
da is the same as desu only it's more informal(like when you're talking with friends)
Deshita = 'was'
Dewa arimasen deshita = 'was not'
Kono hon wa ookii da.
This book is big.
Anata wa gakusei dewa arimasen.
You are not a student.
Watashi wa hisho dewa arimasen deshita.
I was not a secretary.
For example, we'll examine the sentence structure you just learned, A wa B desu.
Wa is the subject marker, remember? A is the subject.
B is the object.
Desu, meaning 'is', is the verb.
With this in mind we can change the words using this sentence pattern to create some new simple sentences...
Let's learn some new vocabulary then, shall we?
Gakkou: School Ni: to Arukimasu: walk
I walk to school.
Verbs:
desu : is
arukimasu : I walk/ someone walks
Adjectives:
ookii : large, big
Nouns:
watashi : I, Me
anata : You
henjin : strange person
gakusei : student
hisho : secretary
hon : book
gakkou : school
Others:
wa : (a particle marking the subject)
ni : (to)
Japanese Lesson 2