SN4 ""

No	Pattern	Freq
1	[vb mod] have been think [prep]	26
2	[modal v] have been think [prep]	26
3	must have been think [prep]	8
4	must have been think [prep]	8
5	[adv] have been think [prep]	7
6	should have been think [prep]	5
7	[adv] have been think [prep]	5
8	should have been think [prep]	5
9	may have been think [prep]	5
10	may have been think [prep]	5
11	have been [adj] think [prep]	5
12	have been [adj] think [prep]	5
13	have been think [prep] [noun]	9
14	have been think [prep] [noun prp]	7
15	have been think [prep] [art]	5
16	have been think [prep] [art]	5