SN4 ""

No	Pattern	Freq
1	[modal v] have [been] [verb] for	290
2	[modal v] have [been] [adj] for	273
3	[modal v] have [been] [adj] for	241
4	[modal v] have [been] [vb pp] for	235
5	[modal v] have [been] [v-ing] for	55
6	[modal v] have [been] responsible for	39
7	[modal v] have [been] responsible for	39
8	[modal v] have [been] [adj -er] for	30
9	[modal v] have [been] good for	28
10	[modal v] have [been] [adv] for	25
11	[modal v] have [been] forgive for	25
12	[modal v] have [been] forgiven for	25
13	[modal v] have [been] [adv] for	22
14	[modal v] have [been] [noun] for	21
15	[modal v] have [been] difficult for	20
16	[modal v] have [been] difficult for	20
17	[modal v] have [been] easy for	19
18	[modal v] have [been] better for	18
19	[modal v] have [been] used for	15
20	[modal v] have [been] use for	15
21	[modal v] have [been] easy for	15
22	[modal v] have [been] possible for	14
23	[modal v] have [been] possible for	14
24	[modal v] have [been] look for	13
25	[modal v] have [been] looking for	13
26	[modal v] have [been] make for	12
27	[modal v] have [been] [noun sg] for	12
28	[modal v] have [been] impossible for	12
29	[modal v] have [been] impossible for	12
30	[modal v] have [been] made for	11