As verbs the difference between combining and forming
is that combining is while forming is .
As nouns the difference between combining and forming
is that combining is the act by which things are combined or brought together while forming is the act by which something is formed; formation.
combining
English
Verb
(head)
Noun
(
en noun)
The act by which things are combined or brought together.
* (Charles Dickens), The Old Curiosity Shop
- these little combinings together, of friends, for objects in themselves extremely laudable, but which the law terms conspiracies
forming
English
Verb
(head)
Noun
(
en noun)
The act by which something is formed; formation.
* 1987 , Jeffrey K. Zeig, The Evolution of Psychotherapy
-