i have never had an issue 'housetraining'.
but to just write down how my pups are 'housetrained', is not so easy.
each pup is different.
I just watch them like a hawk when they are loose in the house, at the first sign they may need to pee or poop, I say, do you have to go pee?, they usually look right at me, I smile, pick em up and out the door to pee or poop, I always say good pee or good poop, whichever fits the occasion.
if they have sarted to pee already, I will just slowly get up and say let's go pee, pick em up and out the door, I will not yell at them or run towards them or god forbid, rub their little wee noses in their pee.
and if the weather is nice i leave a door open for them to go outside in a safe yard to pee, and as soon as they head for the door I say.lets go PEE!
and i do all sorts of other things, just depends on the pup.
some pups give you little warning if they are wanting to pee, they just squat and pee. you have to be alert to their possible need to pee.playing hard, then stop to pee, just get up, need to pee, ate, gotta pee, drank gotta pee,
most pups give you lots of warning if they have to poop.
playing, then stop and run around sniffing, little butt 'protrudes', circling, etc.
NEVER discipline a pup for 'accidents', ignore the bad!
ALWAYS praise your pup for everything they do right, praise the good!
Hugz to all puppies!