SN4 ""

No	Pattern	Freq
1	[adv] have been [adj] for	78
2	[adv] have been [adj] for	70
3	[adv] have been [adj] for	63
4	not have been [adj] for	43
5	[not/n't] have been [adj] for	43
6	not have been [adj] for	34
7	[adv] have been [adj] for	33
8	[adv] have been responsible for	12
9	[adv] have been responsible for	12
10	[adv] have been possible for	11
11	[adv] have been possible for	11
12	[adv] have been easy for	9
13	[adv] have been easy for	9
14	n't have been [adj] for	9
15	[adv] have been good for	7
16	[adv] have been [adj -er] for	7
17	[adv] have been [adj] for	5
18	[adv] has been [adj] for	5
19	[adv] have been better for	5