SN4 ""

No	Pattern	Freq
61	it also [verb] that [adj]	61
62	it also [verb] that [adj]	61
63	it [verb] [verb] that [adj]	56
64	it [vb -s] [verb] that [adj]	43
65	it [adj] [verb] that [adj]	36
66	it [adj] [verb] that [adj]	32
67	it 's [verb] that [adj]	28
68	it do [verb] that [adj]	22
69	it have [verb] that [adj]	22
70	it does [verb] that [adj]	21
71	it be [verb] that [adj]	21
72	it [be] [verb] that [adj]	21
73	it has [verb] that [adj]	14
74	it [vb past] [verb] that [adj]	13
75	it hard [verb] that [adj]	12
76	it hard [verb] that [adj]	12
77	it [prep] [verb] that [adj]	11
78	it will [verb] that [adj]	11
79	it will [verb] that [adj]	11
80	it [prep] [verb] that [adj]	11
81	it may [verb] that [adj]	10
82	it may [verb] that [adj]	10
83	it so [verb] that [adj]	10
84	it now [verb] that [adj]	10
85	it now [verb] that [adj]	10
86	it so [verb] that [adj]	10
87	it for [verb] that [adj]	8
88	it difficult [verb] that [adj]	8
89	it difficult [verb] that [adj]	8
90	it for [verb] that [adj]	8