SN4 ""

No	Pattern	Freq
31	here is [det] [noun]	73
32	[vb pp] is [det] [noun]	68
33	[vb base] is [det] [noun]	59
34	[Wh pn] is [det] [noun]	57
35	who is [det] [noun]	56
36	who is [det] [noun]	56
37	why is [det] [noun]	40
38	why is [det] [noun]	40
39	where is [det] [noun]	39
40	where is [det] [noun]	39
41	[to-vb] is [det] [noun]	39
42	point is [det] [noun]	38
43	point is [det] [noun]	38
44	problem is [det] [noun]	38
45	[vb infin] is [det] [noun]	36
46	[vb -s] is [det] [noun]	35
47	problem is [det] [noun]	35
48	[unc] is [det] [noun]	31
49	[no cls] is [det] [noun]	31
50	[num] is [det] [noun]	30
51	[letter] is [det] [noun]	27
52	[v-ing] is [det] [noun]	27
53	[prep] is [det] [noun]	27
54	[num ord] is [det] [noun]	27
55	[prep] is [det] [noun]	27
56	need is [det] [noun]	23
57	and is [det] [noun]	23
58	and is [det] [noun]	23
59	say is [det] [noun]	21
60	now is [det] [noun]	21