NCM Regular expression to ignore "state up" or "state down" for node in the BigIP config

I have tried the following with little success

^[ \t\r\n\v\f]state[ \t\r\n\v\f]*

^[ \t\r\n\v\f]state[ \t\r\n\v\f]*down

^[ \t\r\n\v\f]state[ \t\r\n\v\f]*up

^! state

^! state*