SN4 ""

No	Pattern	Freq
1	[noun sg] should be [prep]	470
2	[noun] should be in	221
3	[noun pl] should be [prep]	207
4	[noun] should be on	100
5	[noun] should be at	87
6	[noun] should be of	78
7	[noun] should be like	34
8	[noun prp] should be [prep]	32
9	[noun] should be for	29
10	[noun] should be about	20
11	[noun] should be between	19
12	[noun] should be to	16
13	[noun] should be with	15
14	[noun] should be by	14
15	[noun] should be under	13
16	[noun] should be without	12
17	[n mass] should be [prep]	12
18	[noun] should be within	11
19	emphasis should be [prep]	9
20	emphasis should be [prep]	9
21	[noun] should be from	8
22	children should be [prep]	6
23	[noun] should be worth	6
24	child should be [prep]	6
25	focus should be [prep]	6
26	focus should be [prep]	6
27	[letter] should be [prep]	5
28	people should be [prep]	5
29	[noun] should be over	5
30	industry should be [prep]	5