/(?:^|[.!?:]\s+)(?:(?:how\s+(?:can|do)\s+i)\s+([^?!.:]+)\?|(?:i(?:\s+want|(?:\s‌​+am|'m)\s+(?:wanting|trying)|'d\s+like|\s+would\s+like)\s+to\s+([^?!.:]+)(?:$|\.|‌​!)))/i

not worked egg T.t

Uhh

Just 'ask'