SN4 ""

No	Pattern	Freq
1	[verb] n't know about [art]	90
2	do n't know about [art]	90
3	[vb past] n't know about [art]	42
4	[vb base] n't know about [art]	42
5	did n't know about [art]	42
6	do n't know about [art]	42
7	[vb -s] n't know about [art]	6
8	does n't know about [art]	6
9	n't know [pron] about [art]	33
10	n't know [indef pn] about [art]	32
11	n't know anything about [art]	31
12	n't know anything about [art]	31
13	n't know [det] about [art]	12
14	n't know [adj] about [art]	12
15	n't know much about [art]	8
16	n't know much about [art]	8
17	n't know about [art] [noun]	65
18	n't know about [art] [noun sg]	42
19	n't know about [art] [adj]	26
20	n't know about [art] [adj]	23
21	n't know about [art] [noun pl]	17
22	n't know about [art] other	5
23	n't know about [art] other	5