SN4 ""

No	Pattern	Freq
31	it be [adj] [prep] this [noun]	128
32	it be [adv] [prep] this [noun]	100
33	it be [verb] [prep] this [noun]	83
34	it be [vb pp] [prep] this [noun]	69
35	it be only [prep] this [noun]	25
36	it be only [prep] this [noun]	25
37	it be also [prep] this [noun]	22
38	it be also [prep] this [noun]	22
39	it be not [prep] this [noun]	18
40	it be [not/n't] [prep] this [noun]	18
41	it be [noun] [prep] this [noun]	17
42	it be important [prep] this [noun]	15
43	it be not [prep] this [noun]	15
44	it be important [prep] this [noun]	15
45	it be clear [prep] this [noun]	14
46	it be clear [prep] this [noun]	14
47	it be [adv prt] [prep] this [noun]	11
48	it be probably [prep] this [noun]	10
49	it be [noun sg] [prep] this [noun]	10
50	it be [conj] [prep] this [noun]	10
51	it be appropriate [prep] this [noun]	10
52	it be appropriate [prep] this [noun]	10
53	it be probably [prep] this [noun]	10
54	it be precisely [prep] this [noun]	9
55	it be because [prep] this [noun]	9
56	it be because [prep] this [noun]	9
57	it be [v-ing] [prep] this [noun]	9
58	it be [subord] [prep] this [noun]	9
59	it be precisely [prep] this [noun]	9
60	it be [prep] [prep] this [noun]	8