SN4 ""

No	Pattern	Freq
1	have been [verb] [to-vb] the	326
2	have been [vb pp] [verb] the	321
3	have been made [verb] the	38
4	have been make [verb] the	38
5	have been [v-ing] [verb] the	30
6	have been use [verb] the	30
7	have been used [verb] the	30
8	have been [verb] [v-ing] the	20
9	have been trying [verb] the	17
10	have been try [verb] the	17
11	have been developed [verb] the	13
12	have been develop [verb] the	13
13	have been shown [verb] the	13
14	have been show [verb] the	13
15	have been force [verb] the	12
16	have been forced [verb] the	12
17	have been take [verb] the	11
18	have been taken [verb] the	11
19	have been ask [verb] the	10
20	have been asked [verb] the	10
21	have been [verb] use the	8
22	have been [verb] using the	8
23	have been [verb] to explain the	7
24	have been invited [verb] the	7
25	have been [verb] to increase the	7
26	have been [verb] increase the	7
27	have been [verb] explain the	7
28	have been propose [verb] the	7
29	have been proposed [verb] the	7
30	have been invite [verb] the	7