SN4 ""

No	Pattern	Freq
1	[vb mod] or could not	15
2	[modal v] or could not	15
3	could or could not	13
4	could or could not	13
5	[adv] or could not	11
6	[not/n't] or could not	10
7	not or could not	10
8	not or could not	8
9	[noun] or could not	6
10	[verb] or could not	5
11	or [pron] could not	29
12	or [pers pn] could not	22
13	or [noun] could not	18
14	or [noun sg] could not	11
15	or you could not	6
16	or you could not	6
17	or could not [vb infin]	35
18	or could not [verb]	35
19	or could not [be]	14
20	or could not [be]	14
21	or could not be	14
22	or could not be	14
23	or could not do	6
24	or could not do	6