SN4 ""

No	Pattern	Freq
1	[noun sg] that have been	1850
2	[noun sg] that have been	1850
3	[noun sg] [that] have been	1850
4	[noun sg] [conj] has been	1229
5	[noun sg] [conj] had been	991
6	[noun sg] [coord] have been	722
7	[noun sg] and have been	599
8	[noun sg] and have been	599
9	[noun sg] [conj] have been	213
10	[noun sg] [conj] 's been	212
11	[noun sg] [subord] have been	142
12	[noun sg] as have been	78
13	[noun sg] as have been	78
14	[noun sg] but have been	77
15	[noun sg] but have been	77
16	[noun sg] than have been	64
17	[noun sg] than have been	64
18	[noun sg] [conj] having been	57
19	work [conj] have been	56
20	[noun sg] or have been	46
21	[noun sg] or have been	46
22	progress [conj] have been	23
23	money [conj] have been	22
24	year [conj] have been	19
25	house [conj] have been	18
26	thing [conj] have been	16
27	question [conj] have been	16
28	research [conj] have been	16
29	area [conj] have been	16
30	company [conj] have been	16