SN4 ""

No	Pattern	Freq
1	be sitting at the	90
2	[be] sitting at the	90
3	[was/were] sitting at the	62
4	was sitting at the	52
5	[noun] sitting at the	40
6	[noun sg] sitting at the	18
7	[adv] sitting at the	16
8	[pron] sitting at the	13
9	[pers pn] sitting at the	12
10	[adv] sitting at the	12
11	[conj] sitting at the	11
12	[noun pl] sitting at the	11
13	were sitting at the	10
14	[noun prp] sitting at the	9
15	[prep] sitting at the	8
16	[am/are] sitting at the	8
17	[been] sitting at the	8
18	[prep] sitting at the	8
19	been sitting at the	8
20	[coord] sitting at the	7
21	[verb] sitting at the	6
22	[be] sitting at the	6
23	[is] sitting at the	6
24	be sitting at the	6
25	and sitting at the	5
26	is sitting at the	5
27	and sitting at the	5
28	sitting [adv] at the	24
29	sitting [adv prt] at the	13
30	sitting [adv] at the	11