SN4 ""

No	Pattern	Freq
1	[pron] must be [verb] that	595
2	[pers pn] must be [verb] that	594
3	it must be [verb] that	586
4	it must be [verb] that	586
5	[noun] must be [verb] that	42
6	[noun sg] must be [verb] that	30
7	[noun pl] must be [verb] that	10
8	care must be [verb] that	7
9	care must be [verb] that	7
10	he must be [verb] that	5
11	he must be [verb] that	5
12	must [adv] be [verb] that	107
13	must [adv] be [verb] that	78
14	must also be [verb] that	48
15	must also be [verb] that	48
16	must [not/n't] be [verb] that	29
17	must not be [verb] that	29
18	must not be [verb] that	29
19	must always be [verb] that	8
20	must always be [verb] that	8
21	must never be [verb] that	6
22	must never be [verb] that	6
23	must [verb] be [verb] that	5
24	must [vb infin] be [verb] that	5
25	must be [verb] [verb] that	65
26	must be [vb pp] [verb] that	63
27	must be take [verb] that	35
28	must be taken [verb] that	35
29	must be [adj] [verb] that	19
30	must be [adj] [verb] that	18