SN4 ""

No	Pattern	Freq
1	[pers pn] have been doing [pron] for	28
2	[pers pn] have been doing it for	27
3	[pers pn] have been doing [pers pn] for	27
4	[pers pn] have been doing it for	27
5	[pers pn] have been doing [det] for	23
6	[pers pn] have been doing [adj] for	23
7	[pers pn] have been doing this for	11
8	[pers pn] have been doing this for	11
9	[pers pn] have been doing that for	9
10	[pers pn] have been doing that for	9
11	[pers pn] have been doing [adv] for	5
12	[pers pn] have been doing [adv] for	5
13	[pron] [pers pn] have been doing for	11
14	[conj] [pers pn] have been doing for	10
15	what [pers pn] have been doing for	10
16	[Wh det] [pers pn] have been doing for	10
17	what [pers pn] have been doing for	10
18	[subord] [pers pn] have been doing for	6
19	as [pers pn] have been doing for	5
20	as [pers pn] have been doing for	5
21	[pers pn] have been doing for [art]	14
22	[pers pn] have been doing for [art]	14
23	[pers pn] have been doing for the	13
24	[pers pn] have been doing for the	13