Questions & Answers about Ich bin durstig und trinke Wasser.
In German, is it better to say "Ich bin durstig" or "Ich habe Durst"?
Both are perfectly fine! Ich bin durstig uses the verb sein (to be) just like the English "I am thirsty". However, you will also very commonly hear Germans say Ich habe Durst (literally "I have thirst") using the verb haben (to have).
Why is the "ich" missing before "trinke"?
Just like in English, if the person doing the action is the same in both halves of a sentence connected by und (and), you do not need to repeat the subject. You could say Ich bin durstig und ich trinke Wasser, but dropping the second ich sounds much more natural.
Why does "trinke" end in "-e"?
Because the subject of the verb is ich (I). In German, regular verbs matching ich drop their standard -en ending and get an -e instead. So the dictionary form trinken (to drink) becomes trinke.
Do I need a word for "some" before "Wasser"?
No, you can just say Wasser on its own when talking about the liquid in general, exactly like saying "I drink water" in English.