SN4 ""

No	Pattern	Freq
1	[noun] which [be] for	28
2	[noun sg] which [be] for	16
3	[prep] which [be] for	15
4	[prep] which [be] for	15
5	of which [be] for	13
6	of which [be] for	13
7	[noun pl] which [be] for	10
8	which [vb mod] [be] for	20
9	which [modal v] [be] for	20
10	which [pron] [be] for	13
11	which [pers pn] [be] for	9
12	which [noun] [be] for	8
13	which it [be] for	5
14	which it [be] for	5
15	which [be] [adj] for	729
16	which [be] [adj] for	714
17	which [be] [verb] for	526
18	which [be] [vb pp] for	475
19	which [be] responsible for	152
20	which [be] responsible for	152
21	which [be] use for	60
22	which [be] used for	60
23	which [be] [adv] for	52
24	which [be] necessary for	43
25	which [be] necessary for	43
26	which [be] essential for	39
27	which [be] essential for	39
28	which [be] [v-ing] for	37
29	which [be] [adv] for	35
30	which [be] ideal for	33