SN4 ""

No	Pattern	Freq
1	must be [verb] [prep] the [noun]	1049
2	must be [vb pp] [prep] the [noun]	1026
3	must be [verb] [prep] the [noun sg]	868
4	must be [verb] to the [noun]	207
5	must be [verb] to the [noun]	207
6	must be [verb] by the [noun]	192
7	must be [verb] by the [noun]	192
8	must be [verb] in the [noun]	186
9	must be [verb] in the [noun]	186
10	must be [verb] [prep] the [noun pl]	138
11	must be [verb] with the [noun]	67
12	must be [verb] with the [noun]	67
13	must be made [prep] the [noun]	60
14	must be make [prep] the [noun]	60
15	must be [verb] on the [noun]	57
16	must be [verb] on the [noun]	57
17	must be [verb] at the [noun]	52
18	must be [verb] at the [noun]	52
19	must be [verb] from the [noun]	46
20	must be [verb] from the [noun]	46
21	must be [verb] for the [noun]	42
22	must be give [prep] the [noun]	42
23	must be [verb] for the [noun]	42
24	must be given [prep] the [noun]	42
25	must be [verb] [prep] the context	36
26	must be [verb] [prep] the context	36
27	must be [verb] [prep] the [noun prp]	33
28	must be [verb] against the [noun]	27
29	must be [verb] against the [noun]	27
30	must be [v-ing] [prep] the [noun]	22