SN4 ""

No	Pattern	Freq
1	must be [verb] [prep] the	1458
2	must be [vb pp] [prep] the	1422
3	must be [verb] to the	294
4	must be [verb] by the	251
5	must be [verb] in the	251
6	must be [verb] with the	98
7	must be made [prep] the	79
8	must be make [prep] the	79
9	must be [verb] on the	74
10	must be [verb] at the	66
11	must be [verb] from the	66
12	must be [verb] for the	65
13	must be given [prep] the	54
14	must be give [prep] the	54
15	must be [verb] against the	40
16	must be [verb] as the	37
17	must be [v-ing] [prep] the	32
18	must be [verb] within the	31
19	must be see [prep] the	29
20	must be seen [prep] the	29
21	must be taken [prep] the	27
22	must be take [prep] the	27
23	must be [verb] of the	24
24	must be [verb] into the	24
25	must be paid [prep] the	23
26	must be pay [prep] the	23
27	must be [verb] between the	22
28	must be send [prep] the	21
29	must be sent [prep] the	21
30	must be [verb] before the	20