SN4 ""

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