SN4 ""

No	Pattern	Freq
1	been [verb] at	2439
2	[been] [vb pp] at	1920
3	[been] [v-ing] at	511
4	[been] look at	190
5	[been] looking at	159
6	[been] make at	67
7	[been] made at	65
8	[been] work at	50
9	[been] found at	49
10	[been] find at	49
11	[been] working at	46
12	[been] hold at	37
13	[been] held at	37
14	[been] arrive at	36
15	[been] arrived at	33
16	[been] set at	32
17	[been] set at	32
18	[been] see at	31
19	[been] do at	31
20	[been] seen at	31
21	[been] estimated at	29
22	[been] estimate at	29
23	[been] educated at	28
24	[been] educate at	28
25	[been] aim at	27
26	[been] looked at	26
27	[been] direct at	26
28	[been] directed at	25
29	[been] achieve at	25
30	[been] achieved at	25