I am indeed trying to help you, and I'll try once more and then be done. The last two examples that you quote fromWikipedia are not in the subjunctive. Subjunctive is a verb form. Both are merely adverbial clauses of purpose (the conjunction is '
so that'), and both must include the auxiliary verbs. '
Should' is called 'putative
should', which is used to represent a neutral idea rather than a fact; '
might' indicates a tentative idea.
These are right (but not subjunctive):
I put your dinner in the oven so that it should keep warm.
He wrote it in his diary so that he might remember.These are wrongly constructed:
(
X)
I put your dinner in the oven so that it keep warm.
(
X)
He wrote it in his diary so that he remember.Please beware of Wikipedia-- it is created as a group effort by anonymous contributors who are not necessarily accredited. It contains many errors.