SN4 ""

No	Pattern	Freq
1	[conj] it be to be [adj]	41
2	[subord] it be to be [adj]	36
3	if it be to be [adj]	29
4	if it be to be [adj]	29
5	[adj] it be to be [adj]	28
6	[adj] it be to be [adj]	27
7	[pron] it be to be [adj]	16
8	what it be to be [adj]	15
9	what it be to be [adj]	15
10	[Wh det] it be to be [adj]	15
11	likely it be to be [adj]	7
12	likely it be to be [adj]	7
13	it be [adj] to be [adj]	518
14	it be [adj] to be [adj]	476
15	it be [verb] to be [adj]	324
16	it be [v-ing] to be [adj]	169
17	it be go to be [adj]	161
18	it be going to be [adj]	161
19	it be [vb pp] to be [adj]	153
20	it be important to be [adj]	77
21	it be important to be [adj]	77
22	it be good to be [adj]	55
23	it be difficult to be [adj]	50
24	it be difficult to be [adj]	50
25	it be easy to be [adj]	36
26	it be [adj -er] to be [adj]	34
27	it be easy to be [adj]	34
28	it be impossible to be [adj]	30
29	it be impossible to be [adj]	30
30	it be better to be [adj]	28