SN4 ""

No	Pattern	Freq
1	[pron] must be the [noun]	159
2	[noun] must be the [noun]	139
3	[pers pn] must be the [noun]	134
4	[noun sg] must be the [noun]	109
5	it must be the [noun]	83
6	it must be the [noun]	83
7	[adj] must be the [noun]	66
8	[det] must be the [noun]	62
9	this must be the [noun]	31
10	this must be the [noun]	31
11	you must be the [noun]	29
12	you must be the [noun]	29
13	that must be the [noun]	26
14	that must be the [noun]	26
15	[noun pl] must be the [noun]	24
16	[Wh det] must be the [noun]	15
17	what must be the [noun]	10
18	what must be the [noun]	10
19	[conj] must be the [noun]	9
20	[verb] must be the [noun]	9
21	he must be the [noun]	8
22	he must be the [noun]	7
23	they must be the [noun]	7
24	they must be the [noun]	7
25	there must be the [noun]	6
26	there must be the [noun]	6
27	[noun prp] must be the [noun]	6
28	[adv] must be the [noun]	6
29	[adv] must be the [noun]	6
30	[ex0] must be the [noun]	6