One day I had a special class where I taught my Japanese students Hawaii Pidgin.
Fist, no plural form, just tell the number of items by the number. Also, no "A dog" it's "one dog." So, it becomes "One dog, two dog, tree dog, foah dog." (yes those spellings for "three" and four" are correct).
Then, no past tense words, just attach "Went" to the front, except drop the "t" from went because it's difficult to pronounce. So, "wen tink (think), wen do, wen go, wen try." Also, you don't "to" a verb, you "for" (dropping the r) a verb. So, "I wen' try fo' undastan" (I tried to understand).
So I wrote on the board: "Three cats climbed a tree."
I was so proud when they properly changed it to: "Tree cat wen' climb one tree."