SN4 ""

No	Pattern	Freq
1	be not [prep] fact	114
2	[be] not [prep] fact	114
3	[verb] not [prep] fact	105
4	do not [prep] fact	81
5	[was/were] not [prep] fact	53
6	[vb past] not [prep] fact	50
7	[is] not [prep] fact	40
8	is not [prep] fact	39
9	[vb mod] not [prep] fact	37
10	[modal v] not [prep] fact	37
11	did not [prep] fact	35
12	[vb -s] not [prep] fact	31
13	was not [prep] fact	30
14	does not [prep] fact	26
15	were not [prep] fact	23
16	[vb base] not [prep] fact	23
17	have not [prep] fact	23
18	[am/are] not [prep] fact	21
19	do not [prep] fact	20
20	are not [prep] fact	19
21	had not [prep] fact	15
22	may not [prep] fact	13
23	may not [prep] fact	13
24	will not [prep] fact	8
25	will not [prep] fact	8
26	would not [prep] fact	6
27	would not [prep] fact	6
28	has not [prep] fact	5
29	can not [prep] fact	5
30	can not [prep] fact	5