SN4 ""

No	Pattern	Freq
1	have [adv] been as	78
2	have [not/n't] been as	53
3	have not been as	53
4	have not been as	39
5	have [adv] been as	25
6	have n't been as	14
7	have never been as	11
8	have never been as	11
9	[noun] have been as	77
10	[modal v] have been as	60
11	[vb mod] have been as	60
12	[pron] have been as	50
13	[noun sg] have been as	44
14	[pers pn] have been as	38
15	[adv] have been as	28
16	would have been as	18
17	[noun prp] have been as	18
18	[not/n't] have been as	16
19	[verb] have been as	16
20	not have been as	16
21	may have been as	15
22	not have been as	15
23	may have been as	15
24	[noun pl] have been as	14
25	would have been as	13
26	she have been as	12
27	she have been as	12
28	[adj] have been as	11
29	[adv] have been as	11
30	must have been as	10