English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
VERBS WITHOUT PREPOSITIONS
Don’t ~demand for~ anything (nonstandard).
Don’t demand anything (standard).
He ~requested for~ the bill (nonstandard).
He requested the bill (standard).
What I am ~demanding for~ is my right (nonstandard).
What I am demanding is my right (standard).
GAB