SN4 ""

No	Pattern	Freq
1	[pron] [pers pn] have been doing [prep]	37
2	[Wh det] [pers pn] have been doing [prep]	35
3	what [pers pn] have been doing [prep]	32
4	what [pers pn] have been doing [prep]	32
5	[conj] [pers pn] have been doing [prep]	19
6	[noun] [pers pn] have been doing [prep]	16
7	[subord] [pers pn] have been doing [prep]	13
8	[noun sg] [pers pn] have been doing [prep]	12
9	as [pers pn] have been doing [prep]	11
10	as [pers pn] have been doing [prep]	11
11	work [pers pn] have been doing [prep]	8
12	work [pers pn] have been doing [prep]	8
13	that [pers pn] have been doing [prep]	6
14	that [pers pn] have been doing [prep]	6
15	[that] [pers pn] have been doing [prep]	6
16	[pers pn] have been doing [pron] [prep]	37
17	[pers pn] have been doing [pers pn] [prep]	32
18	[pers pn] have been doing it [prep]	32
19	[pers pn] have been doing it [prep]	32
20	[pers pn] have been doing [adj] [prep]	27
21	[pers pn] have been doing [det] [prep]	27
22	[pers pn] have been doing that [prep]	12
23	[pers pn] have been doing this [prep]	12
24	[pers pn] have been doing that [prep]	12
25	[pers pn] have been doing this [prep]	12
26	[pers pn] have been doing [adv] [prep]	11
27	[pers pn] have been doing [adv] [prep]	10
28	[pers pn] have been doing [noun] [prep]	6
29	[pers pn] have been doing [indef pn] [prep]	5
30	[pers pn] have been doing [prep] [art]	34