Can an additional bond be added to this atom by converting a lone pair from a bonded atom (a neighbour)?

(what is a lone pair?)
       
We are about to convert a single bond into a double bond or a double bond into a triple bond.

Work with only one bond at a time.

Focus on adding the new bond in addition where there already is a single bond first if possible.

Only after that should you focus on a place that has a double bond.


Identify lone pairs of a neighbour that is next in line to being able to make the most bonds after the central atom, if possible. You must also consider the best arrangement as applicable to FC values.


first try
:

convert a single bond into a double bond: i.e. convert a lone-pair from a bonded atom into an additional bond that will now form a double bond instead of a single bond with the central atom.

if the first try fails, then
second try
:
convert a double bond into a triple bond by the same method as above.
continue
  continue