SN4 ""

No	Pattern	Freq
1	that have [adv] been [adj]	52
2	that have [adv] been [adj]	51
3	that have [adv] been [adj]	38
4	that had [adv] been [adj]	31
5	that have not been [adj]	14
6	that have [not/n't] been [adj]	14
7	that have not been [adj]	12
8	that have [adv] been [adj]	12
9	that have once been [adj]	9
10	that have once been [adj]	9
11	that have never been [adj]	7
12	that has [adv] been [adj]	7
13	that have never been [adj]	7
14	that have previously been [adj]	5
15	that have [adv] been open	5
16	that have [adv] been open	5
17	that have previously been [adj]	5