SN4 ""

No	Pattern	Freq
1	[pron] could have have [art]	56
2	[pers pn] could have have [art]	54
3	[noun] could have have [art]	18
4	he could have have [art]	16
5	he could have have [art]	16
6	we could have have [art]	10
7	you could have have [art]	10
8	you could have have [art]	10
9	we could have have [art]	10
10	[noun sg] could have have [art]	9
11	i could have have [art]	7
12	i could have have [art]	7
13	they could have have [art]	7
14	[noun prp] could have have [art]	6
15	they could have have [art]	6
16	could [adv] have have [art]	27
17	could [not/n't] have have [art]	16
18	could not have have [art]	16
19	could [adv] have have [art]	11
20	could not have have [art]	8
21	could n't have have [art]	8
22	could have have [art] [noun]	55
23	could have have [art] [noun sg]	51
24	could have have [art] [adj]	30
25	could have have [art] [adj]	19
26	could have have [art] [adj -er]	5