SN4 ""

No	Pattern	Freq
1	have been used	1738
2	[verb] been used	1738
3	[vb -s] been used	674
4	has been used	649
5	[vb base] been used	498
6	have been used	482
7	[adv] been used	383
8	[adv] been used	314
9	[vb past] been used	310
10	had been used	304
11	[vb infin] been used	190
12	have been used	190
13	not been used	69
14	[not/n't] been used	69
15	not been used	58
16	also been used	57
17	also been used	57
18	to have been used	51
19	[to-vb] been used	51
20	already been used	40
21	already been used	40
22	long been used	25
23	long been used	25
24	's been used	25
25	never been used	24
26	never been used	24
27	[noun] been used	22
28	often been used	19
29	often been used	19
30	[noun sg] been used	16