SN4 ""

No	Pattern	Freq
1	[pers pn] [verb] been thinking about	84
2	[pers pn] have been thinking about	84
3	[pers pn] [vb base] been thinking about	65
4	[pers pn] have been [verb] about	49
5	[pers pn] have been [v-ing] about	43
6	[pers pn] have been thinking [prep]	17
7	[pers pn] have been thinking [prep]	17
8	[pron] have been thinking about	11
9	[pers pn] have be thinking about	10
10	[pers pn] have [been] thinking about	10
11	[pers pn] have [be] thinking about	10
12	[pers pn] have been thinking about	10
13	[pers pn] have been think about	10