You would spell value with -ing on the end as valuing.
When you add -ing to a verb, and that verb has a silent E on the end, you get rid of the E.
Valuing.
That's not proper grammar. In such a case you are determining value. Not value "ing".
Practicing
planning
centering
Picning
end ear ing
The correct spelling is "sticking."
It's bullying.
It is simply 'gossiping'.
The correct spelling is "gossiping".
Chase+ing is spelled chasing. You drop the 'e' and add '-ing'. The cat was chasing his tail.
There is no such word.The word mercy is a noun. Only verbs have an -ing form.