SN4 ""

No	Pattern	Freq
1	have been use	2016
2	[verb] been use	2016
3	[vb -s] been use	720
4	has been use	690
5	[vb base] been use	621
6	have been use	547
7	[adv] been use	406
8	[vb past] been use	401
9	had been use	380
10	[adv] been use	329
11	[vb infin] been use	207
12	have been use	206
13	not been use	77
14	[not/n't] been use	77
15	've been use	74
16	not been use	63
17	also been use	57
18	also been use	57
19	[to-vb] been use	52
20	to have been use	52
21	already been use	43
22	already been use	43
23	's been use	30
24	long been use	25
25	long been use	25
26	never been use	24
27	never been use	24
28	[noun] been use	23
29	'd been use	21
30	often been use	19