SN4 ""

No	Pattern	Freq
1	has long been [vb pp] [prep]	125
2	have long been [vb pp] by	69
3	have long been [vb pp] as	63
4	had long been [vb pp] [prep]	49
5	have long been [vb pp] [prep]	45
6	have long been [vb pp] in	31
7	have long been used [prep]	20
8	have long been known [prep]	17
9	have long been regarded [prep]	16
10	have long been [vb pp] with	16
11	have long been [vb pp] for	15
12	have long been recognised [prep]	12
13	have long been [vb pp] to	11
14	have long been associated [prep]	10
15	have long been established [prep]	9
16	have long been [vb pp] from	5
17	have long been recognized [prep]	5
18	have long been suspected [prep]	5