1.be worth doing
eg.The book is worth reading
2.be worthy of being done /be worthy to be done
eg.The book is worthy of being read /to be read.
3.It is worthwhile to do sth.
eg.It is worthwhile to go there.
1.be worth doing
eg.The book is worth reading
2.be worthy of being done /be worthy to be done
eg.The book is worthy of being read /to be read.
3.It is worthwhile to do sth.
eg.It is worthwhile to go there.