I have a nested list shaped like
`mylist = [[a, b, c, d], [e, f, g, h], [i, j, k, l]]`
And i need to split the nested lists so that every two items are grouped together like this:
`Nested_list = [[[a, b], [c, d], [[e, f], [g, h]], [[i, j], [k, l]]`

I tried splitting them by them by usinga for loop that appended them but this doesn't work.