Answer:
The letter S is added to pluralise most words in the English language. eg. Letter to Letters Word to Words and Language to Languages. But I am a word that is pluralised with the addition of the letter C.
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
I move without wings, between silken strings. I leave as you find my substance behind. What am I?
I cannot be burned in fire or drowned in water. What am I?
I am a cold man without a soul. If there is warmth in me, it slowly will kill me. What am I?
The answer I give is yes, but what I mean is no. What was the question?