You're right, had a good time laughing about funny word-for-word translations
"Und ich sprecte English, zu!"
the other way round it would be "I speak too english"
nul? I don't know this word, or better said: I don't know any context in which it would make sense here
And btw: "..., too" is translated into german as "auch", so do not write "Ich spreche Englisch, zu" (as you may have noticed, that was quite funny for us german-speakers), instead write "Ich spreche auch Englisch"