SN4 ""

No	Pattern	Freq
1	[det] have been [vb pp] [prep] [det]	71
2	[det] has been [vb pp] [prep] [det]	43
3	this have been [vb pp] [prep] [det]	29
4	[det] have been [vb pp] in [det]	20
5	[det] have been [vb pp] in [det]	20
6	[det] have been [vb pp] [prep] some	15
7	[det] have been [vb pp] [prep] this	15
8	[det] have been [vb pp] [prep] [det]	15
9	[det] have been [vb pp] by [det]	12
10	[det] have been [vb pp] by [det]	12
11	much have been [vb pp] [prep] [det]	11
12	these have been [vb pp] [prep] [det]	10
13	[det] have been written [prep] [det]	9
14	that have been [vb pp] [prep] [det]	8
15	[det] had been [vb pp] [prep] [det]	7
16	[det] have been [vb pp] [prep] several	7
17	[det] have been [vb pp] for [det]	7
18	[det] have been [vb pp] for [det]	7
19	[det] have been [vb pp] [prep] all	6
20	[det] have been [vb pp] [prep] many	6
21	[det] have been [vb pp] [prep] that	6
22	[det] have been [vb pp] to [det]	5
23	[det] have been [vb pp] to [det]	5
24	[det] have been [vb pp] on [det]	5
25	[det] have been [vb pp] on [det]	5
26	[det] have been made [prep] [det]	5
27	[det] have been [vb pp] about [det]	5
28	[det] have been [vb pp] about [det]	5