SN4 ""

No	Pattern	Freq
1	[verb] been doing [prep]	111
2	have been doing [prep]	110
3	[vb base] been doing [prep]	58
4	[pron] been doing [prep]	40
5	[pers pn] been doing [prep]	40
6	you been doing [prep]	37
7	you been doing [prep]	37
8	[vb past] been doing [prep]	33
9	have been doing [prep]	29
10	've been doing [prep]	29
11	had been doing [prep]	24
12	[vb infin] been doing [prep]	12
13	have been doing [prep]	11
14	'd been doing [prep]	9
15	[adv] been doing [prep]	8
16	[vb -s] been doing [prep]	8
17	[adv] been doing [prep]	7
18	's been doing [prep]	5
19	been doing [pron] [prep]	61
20	been doing it [prep]	54
21	been doing it [prep]	54
22	been doing [pers pn] [prep]	54
23	been doing [adj] [prep]	42
24	been doing [det] [prep]	41
25	been doing [adv] [prep]	22
26	been doing [adv] [prep]	21
27	been doing this [prep]	20
28	been doing this [prep]	20
29	been doing that [prep]	15
30	been doing that [prep]	15