SN4 ""

No	Pattern	Freq
1	been [verb] at the [noun] of	221
2	[been] [verb] at the [noun] of	221
3	[been] [verb] at the [noun sg] of	210
4	[been] [vb pp] at the [noun] of	189
5	[been] [v-ing] at the [noun] of	32
6	[been] [verb] at the time of	25
7	[been] [verb] at the time of	25
8	[been] [verb] at the end of	24
9	[been] [verb] at the end of	24
10	[been] [verb] at the expense of	19
11	[been] [verb] at the expense of	19
12	[been] look at the [noun] of	12
13	[been] looking at the [noun] of	12
14	[been] achieved at the [noun] of	11
15	[been] achieve at the [noun] of	11
16	[been] [verb] at the [noun pl] of	11
17	[been] make at the [noun] of	10
18	[been] made at the [noun] of	10
19	[been] [verb] at the beginning of	10
20	[been] [verb] at the beginning of	10
21	[been] [verb] at the level of	9
22	[been] [verb] at the level of	9
23	[been] place at the [noun] of	8
24	[been] [verb] at the top of	8
25	[been] [verb] at the cost of	8
26	[been] placed at the [noun] of	8
27	[been] [verb] at the top of	8
28	[been] [verb] at the cost of	8
29	[been] [verb] at the request of	8
30	[been] [verb] at the request of	8