SN4 ""

No	Pattern	Freq
1	must be [adj]	4588
2	must be [adj]	3713
3	must be [det]	448
4	must be [num]	316
5	must be able	293
6	must be able	293
7	must be some	194
8	must be some	194
9	must be one	142
10	must be one	142
11	must be careful	127
12	must be careful	127
13	must be prepared	122
14	must be prepared	122
15	must be aware	115
16	must be aware	115
17	must be [adj -er]	98
18	must be satisfied	94
19	must be satisfied	94
20	must be good	87
21	must be mad	67
22	must be mad	67
23	must be capable	61
24	must be capable	61
25	must be available	60
26	must be available	60
27	must be good	59
28	must be clear	58
29	must be clear	57
30	must be true	53