SN4 ""

No	Pattern	Freq
1	has [adv] been [vb pp] to	380
2	has now been [vb pp] to	78
3	has now been [vb pp] to	78
4	has already been [vb pp] to	69
5	has already been [vb pp] to	69
6	has [not/n't] been [vb pp] to	56
7	has not been [vb pp] to	56
8	has not been [vb pp] to	51
9	has also been [vb pp] to	46
10	has also been [vb pp] to	46
11	has [adv] been referred to	25
12	has [adv] been shown to	25
13	has [adv] been made to	23
14	has recently been [vb pp] to	22
15	has recently been [vb pp] to	22
16	has previously been [vb pp] to	15
17	has previously been [vb pp] to	15
18	has [adv] been given to	15
19	has often been [vb pp] to	14
20	has often been [vb pp] to	14
21	has since been [vb pp] to	13
22	has never been [vb pp] to	13
23	has never been [vb pp] to	13
24	has since been [vb pp] to	13
25	has [adv] been confined to	13
26	has [adv] been applied to	12
27	has [adv] been extended to	12
28	has [adv] been found to	12
29	has [adv] been reduced to	11
30	has [adv] been attributed to	11