I've read through what your post on entries and forms says, and it seems to me that the multiple form elements are redundant; if the forms are the same, then there only needs to be one form element. In other words, one form can have multiple senses, and one sense can have multiple forms; however, if it's a situation where there are two forms (a and b) and two senses (1 and 2), and form a only goes with sense one, while form b only goes with sense 2, then they should be in separate entry elements.

Does that make sense?