Smoke is an uncountable noun and has no plural. You could speak in terms of puffs of smoke, or plumes of smoke.
Smokejumper [ nickname for a forestry firefighter parachutist ], smokestack, smoked, smoking, smokeater.
Care
You could add the suffix -s to it to make the word isles.
You could add the suffix -ing to it to make the word turning.
You could add the suffix -ful to it to make the word resourceful.
falsehood
a
One suffix you can add is -en. In this case, the word would be seen.
-ize
The suffix you could add to the root word "truth" to create a word that means characterized by honesty is "-ful", resulting in the word "truthful".
A common type of suffix that could be added to the word "replace" is "-ment," to form the word "replacement".
You would add the suffix -less meaning without or lacking, to make "senseless."
Legalizing
Care
The word would become embezzlement.
walked :)
You could add the suffix -s to it to make the word isles.
Yes, you can add the suffix "-ed" to the word "whisper" to make it "whispered," which indicates that the action of whispering has already happened.