SN4 ""

No	Pattern	Freq
1	[vb mod] [adv] have been [prep] [adj]	53
2	[vb mod] [adv] have been [prep] [det]	33
3	[vb mod] not have been [prep] [adj]	30
4	[vb mod] [not/n't] have been [prep] [adj]	30
5	[vb mod] [adv] have been [prep] [adj]	23
6	[vb mod] [adv] have been in [adj]	19
7	may [adv] have been [prep] [adj]	18
8	[vb mod] not have been [prep] [adj]	18
9	[vb mod] [adv] have been [prep] [adj]	16
10	would [adv] have been [prep] [adj]	16
11	[vb mod] [adv] have been [prep] that	13
12	[vb mod] [adv] have been [prep] that	13
13	[vb mod] n't have been [prep] [adj]	12
14	[vb mod] [adv] have been of [adj]	8
15	[vb mod] [adv] have been on [adj]	7
16	[vb mod] never have been [prep] [adj]	6
17	[vb mod] [adv] have been at [adj]	6
18	[vb mod] [adv] have been [prep] this	6
19	[vb mod] [adv] have been [prep] this	6
20	[vb mod] never have been [prep] [adj]	6
21	should [adv] have been [prep] [adj]	5
22	[vb mod] well have been [prep] [adj]	5
23	could [adv] have been [prep] [adj]	5
24	[vb mod] well have been [prep] [adj]	5