SN4 ""

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