SN4 ""

No	Pattern	Freq
1	be [vb pp] to be [adv] [adj]	799
2	is [vb pp] to be [adv] [adj]	231
3	was [vb pp] to be [adv] [adj]	206
4	are [vb pp] to be [adv] [adj]	156
5	were [vb pp] to be [adv] [adj]	115
6	be [vb pp] to be more [adj]	114
7	be [vb pp] to be [adv] [adj]	106
8	be found to be [adv] [adj]	99
9	be said to be [adv] [adj]	89
10	been [vb pp] to be [adv] [adj]	85
11	be thought to be [adv] [adj]	78
12	be considered to be [adv] [adj]	70
13	be [vb pp] to be very [adj]	69
14	be [vb pp] to be too [adj]	65
15	be [vb pp] to be [adv] [num]	64
16	be expected to be [adv] [adj]	61
17	be seen to be [adv] [adj]	60
18	be [vb pp] to be as [adj]	55
19	be shown to be [adv] [adj]	52
20	be known to be [adv] [adj]	40
21	be [vb pp] to be [adv] [adj -er]	38
22	be bound to be [adv] [adj]	37
23	be [vb pp] to be so [adj]	32
24	be [vb pp] to be less [adj]	31
25	be [vb pp] to be about [adj]	31
26	be felt to be [adv] [adj]	30
27	be [vb pp] to be [adv] high	27
28	be [vb pp] to be [adv] effective	27
29	be [vb pp] to be [adv] effective	27
30	be assumed to be [adv] [adj]	26