SN4 ""

No	Pattern	Freq
1	[noun] be for	3317
2	[noun sg] [be] for	2288
3	[noun] [is] for	1702
4	[noun] is for	1564
5	[noun] [was/were] for	1106
6	[noun] was for	809
7	[noun pl] [be] for	741
8	[noun] [am/are] for	464
9	[noun] are for	463
10	[noun] were for	297
11	[noun] 's for	138
12	[noun prp] [be] for	129
13	[letter] [be] for	110
14	thing [be] for	78
15	thing [be] for	67
16	plan [be] for	63
17	plan [be] for	53
18	[n mass] [be] for	49
19	preference [be] for	43
20	need [be] for	42
21	preference [be] for	42
22	need [be] for	35
23	contract [be] for	33
24	contract [be] for	31
25	requirement [be] for	29
26	idea [be] for	27
27	requirement [be] for	27
28	concern [be] for	27
29	concern [be] for	27
30	proposal [be] for	27