SN4 ""

No	Pattern	Freq
1	there have [been] [adj] attempt	33
2	[pron] have been [adj] attempt	33
3	[pron] have [been] [adj] attempts	33
4	there have [been] [adj] attempt	33
5	[ex0] have [been] [adj] attempt	33
6	[pron] have [been] [det] attempt	19
7	[pron] have [been] [adj] attempt	12
8	[pron] have [been] many attempt	6
9	[pron] have [been] several attempt	6
10	[pron] have [been] several attempt	6
11	[pron] have [been] many attempt	6
12	[pron] have [been] few attempt	5
13	[pron] have [been] few attempt	5