SN4 ""

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