Does English have a “sequence of moods” rule? Should the blanks be filled in by was or were?
If we knew that it ___ raining, we would also know that the street ___ wet.
That is, are the irreal subjunctives represented by knew and would followed by the “that” clauses?
If the present statistical answer is was, has this changed historically from a time when it was were?
Also, what is the connexion between that example and
I should like to think that it were so.
in A. A. Milne?
Would was in the first case not imply was in this second case? Or is there some difference that I am missing?