As in many other languages, Greek verbs have different forms for each person and number.  Here is the present tense indicative of a typical verb:

singular plural
first person γράφω“I write”   γράφομεν“we write”
second person γράφεις“you write”   γράφετε“you write”
third person γράφει“he, she, it writes”   γράφουσι[ν]“they write”

The ν is added to γράφουσι when a vowel follows, or at the end of a sentence.

See if you can translate these sentences.  The verbs  φέρω, “carry,” and  πέμπω, “send,” are declined the same way.  καί means “and.”

1.  γράφεις λόγον φίλῳ.

2.  φέρομεν τὸν ταῦρον τῷ ὠκεανῷ.

3.  ὁ ἄνθρωπος καὶ ὁ ἀδελφὸς πέμπουσι φίλον τῷ Νείλῳ.

1.  You write a word to a friend.  (Notice that this only took three words in Greek.)
2.  We carry the bull to the ocean.
3.  The man and the brother send a friend to the Nile.