13 Sentence language hack

Theoretically, you can show 80% of the grammar of Spanish in 13 sentences. If you thoroughly understand why these sentences are the way they are, you've hacked grammar.

Here's Tim Ferriss's 13:

English	Español
The apple is red It is John’s apple I give John the apple We give him the apple	La manzana es roja Es la manzana de John Le doy la manzana a John Le damos la manzana
He gives it to John She gives it to him	Él se la da a John Ella se la da
I must give it to him I want to give it to her I’m going to buy it tomorrow I can’t eat the apple I have eaten the apple	Debo dársela a él Quiero dársela (a ella) Voy a comprarla mañana No puedo comer la manzana Me he comido la manzana
Is the apple red? The apples are red	¿La manzana es roja? Las manzanas son rojas

Here are 13 sentences from Andrew Barr:

The idea is interesting It is María’s idea  I tell Carlos the idea  We tell him the idea  He tells it to Jose  She tells it to him                    I have to tell it to him              I want to tell it to her               I’m going to tell him the idea tomorrow                                 I can’t tell you the idea  I have told him the idea          Is the idea interesting?        The ideas are interesting

– La idea es interesante – Es la idea de María – Le digo la idea a Carlos – Le decimos la idea – Él se la dice a Carlos – Ella se la dice – Tengo que decírsela (a él) – Quiero decírsela (a ella) – Le voy a decir la idea mañana – No te puedo decir la idea – Le he dicho la idea – ¿Es la idea interesante? – Las ideas son interesantes