SN4 ""

No	Pattern	Freq
1	have been [verb] [prep] the	2983
2	have [been] [vb pp] [prep] the	2693
3	have [been] [verb] by the	658
4	have [been] [verb] in the	587
5	have [been] [v-ing] [prep] the	290
6	have [been] [verb] to the	287
7	have [been] [verb] on the	206
8	have [been] [verb] for the	196
9	have [been] [verb] from the	171
10	have [been] make [prep] the	151
11	have [been] made [prep] the	150
12	have [been] [verb] into the	108
13	have [been] [verb] at the	105
14	have [been] [verb] with the	102
15	have [been] [verb] over the	100
16	have [been] [verb] about the	54
17	have [been] find [prep] the	46
18	have [been] found [prep] the	46
19	have [been] use [prep] the	42
20	have [been] used [prep] the	41
21	have [been] [verb] during the	38
22	have [been] develop [prep] the	37
23	have [been] [verb] under the	36
24	have [been] [verb] as the	34
25	have [been] developed [prep] the	34
26	have [been] add [prep] the	33
27	have [been] added [prep] the	32
28	have [been] identify [prep] the	31
29	have [been] identified [prep] the	31
30	have [been] [verb] since the	30