SN4 ""

No	Pattern	Freq
1	that have [adv] been	550
2	that had [adv] been	211
3	that has [adv] been	164
4	that have [adv] been	135
5	that have already been	111
6	that have never been	62
7	that have once been	49
8	that 's [adv] been	40
9	that have previously been	39
10	that have ever been	36
11	that have always been	36
12	that have just been	36
13	that have long been	20
14	that have recently been	20
15	that have now been	15
16	that have since been	11
17	that have hitherto been	10
18	that have also been	8
19	that have traditionally been	8
20	that have often been	7
21	that have actually been	7
22	that have sometimes been	6