SN4 ""

No	Pattern	Freq
1	that have been [verb] for	157
2	that have been [verb] for	157
3	that have been [vb pp] for	122
4	that has been [verb] for	49
5	that had been [verb] for	45
6	that have been [verb] for	43
7	that have been [v-ing] for	35
8	that 's been [verb] for	19
9	that have been used for	14
10	that have been use for	14
11	that have been made for	10
12	that have been make for	10
13	that have been proposed for	7
14	that have been propose for	7
15	that have been run for	6
16	that have been running for	6
17	that have been develop for	5