SN4 ""

No	Pattern	Freq
1	[be] the key to [adj]	39
2	be the key to [adj]	39
3	[is] the key to [adj]	22
4	is the key to [adj]	21
5	[prep] the key to [adj]	17
6	[prep] the key to [adj]	17
7	[verb] the key to [adj]	16
8	as the key to [adj]	11
9	as the key to [adj]	11
10	was the key to [adj]	7
11	[was/were] the key to [adj]	7
12	[conj] the key to [adj]	6
13	of the key to [adj]	5
14	of the key to [adj]	5
15	hold the key to [adj]	5
16	[be] the key to [adj]	5
17	are the key to [adj]	5
18	be the key to [adj]	5
19	[am/are] the key to [adj]	5
20	the key to [art] [adj]	110
21	the key to [art] [adj]	110
22	the key to the [adj]	66
23	the key to the [adj]	66
24	the key to a [adj]	44
25	the key to a [adj]	39
26	the key to [adj] [adj]	24
27	the key to [pron] [adj]	19
28	the key to [pos pn] [adj]	19
29	the key to [verb] [adj]	16
30	the key to [v-ing] [adj]	16