SN4 ""

No	Pattern	Freq
1	[pers pn] [vb mod] have been able	113
2	[pers pn] [modal v] have been able	109
3	[pers pn] would have been able	50
4	[pers pn] would have been able	38
5	he [modal v] have been able	30
6	[pers pn] might have been able	27
7	[pers pn] might have been able	27
8	she [modal v] have been able	20
9	[pers pn] should have been able	18
10	i [modal v] have been able	18
11	[pers pn] should have been able	18
12	we [modal v] have been able	17
13	they [modal v] have been able	13
14	[pers pn] 'd have been able	12
15	you [modal v] have been able	11
16	[pers pn] may have been able	8
17	[pers pn] may have been able	8
18	[pers pn] must have been able	5
19	[pers pn] must have been able	5