SN4 ""

No	Pattern	Freq
1	[noun sg] have [adv] been	5499
2	[noun] has [adv] been	4569
3	[noun pl] have [adv] been	3061
4	[noun] have [adv] been	2816
5	[noun] had [adv] been	2765
6	[noun] have already been	1570
7	[noun prp] have [adv] been	1502
8	[noun] have also been	1255
9	[noun] have always been	1197
10	[noun] have never been	796
11	[noun] have now been	738
12	[noun] have long been	459
13	[noun] have recently been	419
14	[noun] have just been	264
15	[noun] have often been	260
16	[noun] have all been	224
17	[n mass] have [adv] been	192
18	[noun] have only been	191
19	[noun] have yet been	187
20	[noun] have ever been	165
21	[noun] have previously been	165
22	[noun] have traditionally been	142
23	[noun] have since been	118
24	[noun] have actually been	104
25	[noun] have probably been	91
26	[noun] have sometimes been	85
27	[noun] 's [adv] been	80
28	[noun] have generally been	71
29	[noun] have once been	71
30	work have [adv] been	69