In the Adjective sentence part in this paragraph
"So now we have an A is B sentence and an A does B sentence. There is one more form of the Japanese core sentence, for it has three forms. The third form is when we have a describing word, an adjective."
I think the "for" is a typo and it should be "so". Like this.
"So now we have an A is B sentence and an A does B sentence. There is one more form of the Japanese core sentence, so it has three forms. The third form is when we have a describing word, an adjective."
In the Adjective sentence part in this paragraph
"So now we have an A is B sentence and an A does B sentence. There is one more form of the Japanese core sentence, for it has three forms. The third form is when we have a describing word, an adjective."
I think the "for" is a typo and it should be "so". Like this.
"So now we have an A is B sentence and an A does B sentence. There is one more form of the Japanese core sentence, so it has three forms. The third form is when we have a describing word, an adjective."