SN4 ""

No	Pattern	Freq
1	[pron] must be for	38
2	[pers pn] must be for	35
3	[noun] must be for	30
4	it must be for	30
5	it must be for	30
6	[noun sg] must be for	23
7	[noun pl] must be for	7
8	must [adv] be for	5
9	must [adv] be for	5
10	must be [verb] for	340
11	must be [vb pp] for	322
12	must be [adj] for	159
13	must be [adj] for	154
14	must be make for	36
15	must be made for	36
16	must be [noun] for	28
17	must be [noun sg] for	22
18	must be paid for	21
19	must be pay for	21
20	must be allowed for	19
21	must be allow for	19
22	must be [v-ing] for	17
23	must be available for	16
24	must be available for	16
25	must be prepare for	13
26	must be good for	13
27	must be prepared for	13
28	must be find for	12
29	must be found for	12
30	must be good for	11