SN4 ""

No	Pattern	Freq
1	have only been	662
2	[verb] only been	662
3	[vb past] only been	268
4	had only been	232
5	[vb -s] only been	220
6	[vb base] only been	164
7	has only been	160
8	've only been	97
9	have only been	67
10	's only been	60
11	[adv] only been	49
12	'd only been	36
13	[not/n't] only been	32
14	not only been	32
15	not only been	30
16	[adv] only been	17
17	[vb infin] only been	9
18	have only been	9
19	[noun] only been	5
20	only [adv] been	146
21	only [adv] been	146
22	only have been	136
23	only [verb] been	136
24	only have been	128
25	only [vb infin] been	128
26	only just been	57
27	only just been	57
28	only recently been	50
29	only recently been	50
30	only ever been	17