SN4 ""

No	Pattern	Freq
1	have been [adv] [adj] for	329
2	have been [adv] [adj] for	303
3	have been [adv] [verb] for	299
4	have been [adv] [vb pp] for	263
5	have been [adv] responsible for	35
6	have been [adv] responsible for	35
7	have been [adv] [adv] for	34
8	have been [adv] [adv] for	33
9	have been [adv] [v-ing] for	24
10	have been [adv] [det] for	22
11	have been [adv] designed for	22
12	have been [adv] design for	22
13	have been [adv] much for	21
14	have been [adv] much for	21
15	have been [adv] difficult for	17
16	have been [adv] difficult for	17
17	have been [adv] now for	14
18	have been [adv] now for	14
19	have been [adv] easy for	12
20	have been [adv] criticised for	11
21	have been [adv] easy for	11
22	have been [adv] criticise for	11
23	have been [adv] develop for	11
24	have been [adv] use for	10
25	have been [adv] good for	10
26	have been [adv] used for	10
27	have been [adv] good for	10
28	have been [adv] developed for	10
29	have been [adv] select for	9
30	have been [adv] selected for	9