SN4 ""

No	Pattern	Freq
1	[vb mod] [adv] have be a	327
2	[modal v] [adv] have been a	326
3	[modal v] [adv] have be a	283
4	[modal v] [adv] have be a	199
5	[modal v] not have be a	128
6	[modal v] [not/n't] have be a	128
7	would [adv] have be a	103
8	would [adv] have be a	102
9	[modal v] not have be a	85
10	may [adv] have be a	65
11	may [adv] have be a	65
12	could [adv] have be a	60
13	could [adv] have be a	60
14	[modal v] [adv] have be an	44
15	[modal v] n't have be a	43
16	might [adv] have be a	36
17	might [adv] have be a	36
18	[modal v] well have be a	35
19	[modal v] well have be a	35
20	can [adv] have be a	26
21	can [adv] have be a	24
22	[modal v] also have be a	22
23	[modal v] also have be a	22
24	must [adv] have be a	19
25	must [adv] have be a	19
26	[modal v] hardly have be a	16
27	[modal v] hardly have be a	16
28	[modal v] only have be a	12
29	[modal v] only have be a	12
30	[modal v] once have be a	11