SN4 ""

No	Pattern	Freq
1	[pers pn] have been for [noun]	48
2	[pers pn] have [been] for [noun pl]	36
3	[pers pn] had [been] for [noun]	25
4	it have [been] for [noun]	21
5	[pers pn] have [been] for years	16
6	[pers pn] have [been] for year	16
7	they have [been] for [noun]	14
8	[pers pn] have [been] for [noun sg]	7
9	[pers pn] have [been] for [noun]	7
10	[pers pn] has [been] for [noun]	6
11	[pers pn] have [been] for century	6
12	[pers pn] have [been] for centuries	6
13	he have [been] for [noun]	5
14	[pers pn] have [been] for [noun prp]	5
15	[pers pn] 'd [been] for [noun]	5