SN4 ""

No	Pattern	Freq
1	have been [verb] to be	621
2	have be [vb pp] to be	613
3	has be [verb] to be	280
4	have be [verb] to be	184
5	have be shown to be	176
6	have be show to be	176
7	have be find to be	143
8	have be found to be	143
9	had be [verb] to be	103
10	have be held to be	28
11	have be hold to be	28
12	have be [verb] to be	24
13	have be report to be	23
14	have be reported to be	23
15	have be prove to be	19
16	having be [verb] to be	17
17	have be design to be	16
18	have be designed to be	16
19	have be proved to be	14
20	have be expect to be	13
21	have be said to be	12
22	have be considered to be	12
23	have be say to be	12
24	have be consider to be	12
25	have be expected to be	12
26	have be assumed to be	11
27	have be assume to be	11
28	have be think to be	10
29	have be thought to be	10
30	have be know to be	9