SN4 ""

No	Pattern	Freq
1	[vb mod] have been [det] sort	11
2	[pron] have been [det] sort	11
3	[modal v] have been [det] sort	11
4	there have been [det] sort	9
5	there have been [det] sort	9
6	[ex0] have been [det] sort	9
7	must have been [det] sort	6
8	must have been [det] sort	6
9	have been [verb] [det] sort	13
10	have been [v-ing] [det] sort	8
11	have been [vb pp] [det] sort	5
12	have been [det] sort of	26
13	have been [det] sort of	26
14	have been [det] sort [prep]	26
15	have been [det] sort [prep]	26