New ways with English words

Getty_prescriptive_grammar-185224219-5859f15e5f9b586e02ec7001DT has done a great service to education by showing how vital grammar is in all aspects of life.So yes, use a  preposition ,I suppose, if  you feel like it,Yet grammar is not based on feelings.One little word wrong and it could be the end of the world

I am  a crook, not the cook
I said my clothes needed pressing not messing
I want a new book, not a rebuke
I need a holiday not an obligation
He has television,you  have television.For  the 195th time  we all have television.
I said how do you like the grammar, not I’m an American spammer
What am I doing here?  What am I doing anywhere… living.
What is an ablative? It  sounds like water but it’s not a w.c.Is it the opposite if disablative?
Nominative  means No,I’m a native
Genitive …..   sensitive mainly  to the organs of generation .Or is it damaging the genitalia  by getting into a hot bath too frequently
Dative
…. is it asking a native for a date ?
Accusative…  it’s a  bit like paranoid but less a theory and more an activity
Why can’t we just speak normal, eh?