regex the word before last one in string

How can I match the word before last one in string.
My current regex get the last one

I needto get the word before it "three"

>Solution :

You could use a positive lookahead here:

\w+(?=\s+\w+$)

This regex pattern says to match:

\w+          match a word
(?=\s+\w+$)  which is followed by whitespace and the final word in the input