SN4 ""

No	Pattern	Freq
1	[noun] have previously been [verb] in	13
2	[pron] have previously been [verb] in	12
3	[noun sg] have previously been [verb] in	8
4	which have previously been [verb] in	7
5	which have previously been [verb] in	7
6	[Wh det] have previously been [verb] in	7
7	[pers pn] have previously been [verb] in	5
8	have [adv] previously been [verb] in	9
9	have not previously been [verb] in	7
10	have [not/n't] previously been [verb] in	7
11	have not previously been [verb] in	7
12	have previously been [verb] in [art]	14
13	have previously been [verb] in [art]	14
14	have previously been [verb] in [noun]	9
15	have previously been [verb] in the	7
16	have previously been [verb] in the	7
17	have previously been [verb] in a	7
18	have previously been [verb] in [adj]	5
19	have previously been [verb] in [noun sg]	5