SN4 ""

No	Pattern	Freq
1	[pron] is to know [prep]	19
2	there is to know [prep]	19
3	[ex0] is to know [prep]	19
4	there is to know [prep]	19
5	[adv] is to know [prep]	12
6	there is to know [prep]	12
7	there is to know [prep]	12
8	[adv] is to know [prep]	12
9	is [adj] to know [prep]	13
10	is [adj] to know [prep]	12
11	is necessary to know [prep]	5
12	is necessary to know [prep]	5
13	is to know [prep] [noun]	16
14	is to know [prep] [pron]	7
15	is to know [prep] [art]	7
16	is to know [prep] [noun sg]	7
17	is to know [prep] [art]	7
18	is to know [prep] the	5
19	is to know [prep] the	5