SN4 ""

No	Pattern	Freq
1	[pron] had [adv] been able	209
2	[pers pn] had [adv] been able	195
3	[pron] had not been able	138
4	[pron] had [not/n't] been able	138
5	he had [adv] been able	79
6	he had [adv] been able	79
7	[pron] had n't been able	73
8	[pron] had [adv] been able	71
9	she had [adv] been able	65
10	[pron] had not been able	65
11	she had [adv] been able	65
12	[pron] had never been able	37
13	[pron] had never been able	37
14	they had [adv] been able	23
15	they had [adv] been able	23
16	i had [adv] been able	19
17	i had [adv] been able	19
18	[pron] had ever been able	11
19	[pron] had ever been able	11
20	[Wh pn] had [adv] been able	8
21	who had [adv] been able	8
22	who had [adv] been able	8
23	it had [adv] been able	5
24	[pron] had always been able	5
25	it had [adv] been able	5
26	[pron] had always been able	5