SN4 ""

No	Pattern	Freq
1	[conj] [pron] is that	88
2	[adv] [pron] is that	63
3	[coord] [pron] is that	61
4	[pron] [pron] is that	58
5	[prep] [pron] is that	57
6	[prep] [pron] is that	57
7	[Wh det] [pron] is that	53
8	[adv] [pron] is that	45
9	[verb] [pron] is that	43
10	and [pron] is that	42
11	and [pron] is that	42
12	[adj] [pron] is that	34
13	what [pron] is that	32
14	what [pron] is that	32
15	[adj] [pron] is that	28
16	[noun] [pron] is that	28
17	[noun sg] [pron] is that	25
18	of [pron] is that	21
19	of [pron] is that	21
20	but [pron] is that	18
21	but [pron] is that	18
22	[subord] [pron] is that	16
23	[Wh adv] [pron] is that	16
24	whatever [pron] is that	15
25	whatever [pron] is that	15
26	[that] [pron] is that	11
27	that [pron] is that	11
28	[vb infin] [pron] is that	11
29	that [pron] is that	11
30	why [pron] is that	10