SN4 ""

No	Pattern	Freq
1	[noun] [noun pl] had previously been	6
2	[adj] [noun pl] had previously been	5
3	the [noun pl] had previously been	5
4	the [noun pl] had previously been	5
5	[art] [noun pl] had previously been	5
6	[art] [noun pl] had previously been	5
7	[noun pl] [pron] had previously been	33
8	[noun pl] [Wh det] had previously been	22
9	[noun pl] which had previously been	21
10	[noun pl] which had previously been	21
11	[noun pl] [conj] had previously been	18
12	[noun pl] [that] had previously been	12
13	[noun pl] that had previously been	12
14	[noun pl] that had previously been	12
15	[noun pl] [Wh pn] had previously been	10
16	[noun pl] who had previously been	10
17	[noun pl] who had previously been	10
18	[noun pl] than had previously been	6
19	[noun pl] [subord] had previously been	6
20	[noun pl] than had previously been	6
21	[noun pl] had previously been [verb]	16
22	[noun pl] had previously been [vb pp]	15