SN4 ""

No	Pattern	Freq
1	[pron] have been drinking	134
2	[pers pn] have been drinking	117
3	he have been drinking	58
4	he have been drinking	58
5	[noun] have been drinking	43
6	[noun sg] have been drinking	17
7	she have been drinking	15
8	[Wh pn] have been drinking	15
9	she have been drinking	15
10	you have been drinking	14
11	i have been drinking	14
12	you have been drinking	14
13	[noun prp] have been drinking	14
14	who have been drinking	14
15	i have been drinking	14
16	who have been drinking	14
17	they have been drinking	12
18	they have been drinking	11
19	[noun pl] have been drinking	10
20	have [adv] been drinking	18
21	have [adv] been drinking	10
22	have [pers pn] been drinking	8
23	have [not/n't] been drinking	8
24	have [pron] been drinking	8
25	have not been drinking	8
26	have n't been drinking	7
27	have you been drinking	5
28	have you been drinking	5
29	have been out drinking	6
30	have been out drinking	6