SN4 ""

No	Pattern	Freq
1	[Wh det] have been [verb] [adv] for	43
2	which have been [verb] [adv] for	40
3	[Wh det] have been [verb] [adv prt] for	32
4	[Wh det] have been [vb pp] [adv] for	26
5	[Wh det] has been [verb] [adv] for	22
6	[Wh det] have been [v-ing] [adv] for	17
7	[Wh det] have been [verb] on for	14
8	[Wh det] have been [verb] on for	14
9	[Wh det] have been go [adv] for	11
10	[Wh det] have been [verb] [adv] for	11
11	[Wh det] have been going [adv] for	11
12	[Wh det] had been [verb] [adv] for	10
13	[Wh det] have been [verb] [adv] for	9
14	[Wh det] have been [verb] up for	5
15	[Wh det] have been set [adv] for	5
16	[Wh det] have been set [adv] for	5
17	[Wh det] have been [verb] up for	5