I don't know how long.

He had him and he was a old boss when I come, and that's years ago.

He's done nothing but go uppards and down'ards all his life, and he must know how long it takes by now, mustn't he ?" "Yes, I suppose so," I said.
"Of course he do, my lad.

He knows just where his orf forefoot ought to be at one o'clock, and his near hind-foot at two.

Why, he goes like clockwork.