SN4 ""

No	Pattern	Freq
1	[verb] is that	2231
2	[vb pp] is [that]	454
3	[vb infin] is [that]	402
4	[to-vb] is [that]	396
5	say is [that]	394
6	[v-ing] is [that]	328
7	[vb -s] is [that]	327
8	[vb base] is [that]	288
9	happen is [that]	173
10	know is [that]	149
11	saying is [that]	148
12	say is [that]	134
13	mean is [that]	123
14	make is [that]	110
15	remember is [that]	82
16	means is [that]	78
17	suggest is [that]	67
18	to remember is [that]	63
19	know is [that]	62
20	happens is [that]	58
21	know is [that]	52
22	note is [that]	51
23	to say is [that]	45
24	to make is [that]	43
25	to note is [that]	39
26	show is [that]	38
27	[vb past] is [that]	36
28	happened is [that]	35
29	have is [that]	34
30	matter is [that]	32