SN4 ""

No	Pattern	Freq
1	[prep] [Wh det] is [that]	34
2	[prep] [Wh det] is [that]	34
3	of [Wh det] is [that]	32
4	of [Wh det] is [that]	32
5	[noun sg] [Wh det] is [that]	22
6	[noun] [Wh det] is [that]	22
7	[Wh det] [pron] is [that]	149
8	[Wh det] it is [that]	148
9	[Wh det] it is [that]	148
10	[Wh det] [pers pn] is [that]	148
11	[Wh det] [verb] is [that]	81
12	[Wh det] [vb -s] is [that]	72
13	[Wh det] happen is [that]	42
14	[Wh det] happens is [that]	33
15	[Wh det] matter is [that]	26
16	[Wh det] matters is [that]	26
17	[Wh det] [noun] is [that]	20
18	[Wh det] [noun sg] is [that]	19
19	[Wh det] happened is [that]	9
20	[Wh det] [vb past] is [that]	9
21	[Wh det] emerge is [that]	7
22	[Wh det] emerges is [that]	7
23	[Wh det] is [pron] [that]	113
24	[Wh det] is it [that]	91
25	[Wh det] is [pers pn] [that]	91
26	[Wh det] is it [that]	91
27	[Wh det] is [verb] [that]	40
28	[Wh det] is [to-vb] [that]	24
29	[Wh det] is [adj] [that]	23
30	[Wh det] is [indef pn] [that]	22