Which one is grammatically correct?
1.These sort of things happen all the time.

2.These sorts of things happen all the time.

Question

Which one is grammatically correct?
1.These sort of things happen all the time.

2.These sorts of things happen all the time.

Answer

These sorts of things happen all the time. (I think)
If you are using a number to modify a noun, be sure the noun agrees with the number. Any number greater than one must modify a plural noun. "Kinds of" and "sorts of" are preferable to "kind of" and "sort of" if you are completing the phrase with a plural noun.

Answer

These sorts of things happen all the time.