SN4 ""

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