Need to remove a line, in which more than seven words

[UkrSTR]

But please understand, I'm from Ukraine, and know English badly. I think this forum will help me.

Need to remove a line, in which more than seven words.
(one character is also considered a word)

There's a feature for characters

^.{10}


(Delete not consistent line)

But it does not work with words.

I hope very much for the answer. On our forums guys are silent .

Thank you, everybody.

[UkrSTR]

Answer )

^([^\s]+\s?){0,7}$