SN4 ""

No	Pattern	Freq
1	[conj] there must be [noun] [prep]	20
2	[subord] there must be [noun] [prep]	8
3	that there must be [noun] [prep]	7
4	that there must be [noun] [prep]	7
5	[that] there must be [noun] [prep]	7
6	[noun] there must be [noun] [prep]	6
7	[coord] there must be [noun] [prep]	5
8	[adv] there must be [noun] [prep]	5
9	[adv] there must be [noun] [prep]	5
10	there must [adv] be [noun] [prep]	12
11	there must [adv] be [noun] [prep]	10
12	there must also be [noun] [prep]	5
13	there must also be [noun] [prep]	5
14	there must be [art] [noun] [prep]	154
15	there must be [art] [noun] [prep]	154
16	there must be [adj] [noun] [prep]	124
17	there must be a [noun] [prep]	120
18	there must be a [noun] [prep]	100
19	there must be [det] [noun] [prep]	73
20	there must be some [noun] [prep]	54
21	there must be some [noun] [prep]	54
22	there must be [adj] [noun] [prep]	44
23	there must be no [noun] [prep]	30
24	there must be no [noun] [prep]	30
25	there must be an [noun] [prep]	20
26	there must be another [noun] [prep]	6
27	there must be another [noun] [prep]	6
28	there must be [noun] [prep] [noun]	31
29	there must be [noun] [prep] [art]	19
30	there must be [noun] [prep] [art]	19