SN4 ""

No	Pattern	Freq
1	[noun sg] have been [to-vb]	532
2	[noun] has been [to-vb]	454
3	[noun] had been [to-vb]	197
4	[noun pl] have been [to-vb]	97
5	[noun prp] have been [to-vb]	39
6	aim have been [to-vb]	28
7	aim have been [to-vb]	28
8	[noun] have been to see	27
9	policy have been [to-vb]	21
10	policy have been [to-vb]	21
11	approach have been [to-vb]	17
12	[noun] have been [to-vb]	17
13	approach have been [to-vb]	17
14	effect have been [to-vb]	16
15	effect have been [to-vb]	16
16	response have been [to-vb]	15
17	year have been [to-vb]	15
18	response have been [to-vb]	15
19	[noun] have been to make	14
20	years have been [to-vb]	14
21	intention have been [to-vb]	13
22	[noun] have been to give	13
23	intention have been [to-vb]	13
24	objective have been [to-vb]	12
25	chapter have been [to-vb]	12
26	[noun] have been to reduce	12
27	objective have been [to-vb]	12
28	[noun] have been to try	11
29	concern have been [to-vb]	11
30	government have been [to-vb]	11