SN4 ""

No	Pattern	Freq
1	[noun] [that] must be [vb pp]	178
2	[noun sg] [that] must be [vb pp]	101
3	[noun pl] [that] must be [vb pp]	73
4	[pron] [that] must be [vb pp]	16
5	[indef pn] [that] must be [vb pp]	15
6	something [that] must be [vb pp]	14
7	something [that] must be [vb pp]	14
8	thing [that] must be [vb pp]	8
9	question [that] must be [vb pp]	7
10	[verb] [that] must be [vb pp]	7
11	[that] [pron] must be [vb pp]	115
12	[that] [noun] must be [vb pp]	111
13	[that] [pers pn] must be [vb pp]	90
14	[that] [noun pl] must be [vb pp]	58
15	[that] it must be [vb pp]	43
16	[that] it must be [vb pp]	43
17	[that] [noun sg] must be [vb pp]	42
18	[that] they must be [vb pp]	24
19	[that] they must be [vb pp]	24
20	[that] [adj] must be [vb pp]	21
21	[that] [det] must be [vb pp]	20
22	[that] [indef pn] must be [vb pp]	20
23	[that] something must be [vb pp]	11
24	[that] something must be [vb pp]	11
25	[that] he must be [vb pp]	10
26	[that] this must be [vb pp]	10
27	[that] [noun prp] must be [vb pp]	10
28	[that] this must be [vb pp]	10
29	[that] he must be [vb pp]	10
30	[that] these must be [vb pp]	7