das ist literally translates to 'that is'
you woudl not use it on its own but in a sentance.
i.e.
Das ist super!
That ist super!
or
Das ist mein hund.
That is my dog
Was ist das = what ist that
"That is not" is "das ist nicht" in English.
translation for what is that is was ist das
Das ist nicht wahr = That is not true
fertig ist das ABC are the closing words of the German of the ABC-song and translate as the ABC is finished/over.
Ist das nicht translates as Is that not or Isn't in German.
Das ist OK Das ist in Ordnung
Depending on the context it can mean: What subject is that?
das ist is the translation in German. It is translated from English to German. German is mostly spoken in the European countries.
Ist das seltsam?
Das ist = That is.
"Vas is das" is not a correct phrase in any language. It may be a mix of German and English, where "was ist das" in German means "what is that" in English.