SN4 ""

No	Pattern	Freq
31	it is unlikely	658
32	it is unlikely	658
33	it is one	618
34	it is one	618
35	it is interesting	613
36	it is interesting	613
37	it is all	419
38	it is all	419
39	it is better	390
40	it is vital	366
41	it is vital	366
42	it is [adj -est]	351
43	it is good	333
44	it is obvious	299
45	it is obvious	299
46	it is best	286
47	it is doubtful	278
48	it is doubtful	278
49	it is useful	268
50	it is useful	268
51	it is that	262
52	it is that	262
53	it is easier	243
54	it is appropriate	242
55	it is appropriate	242
56	it is evident	239
57	it is evident	239
58	it is reasonable	237
59	it is reasonable	237
60	it is probable	232