SN4 ""

No	Pattern	Freq
1	[vb mod] [vb infin] been at	139
2	[modal v] [vb infin] been at	139
3	must [vb infin] been at	40
4	would [vb infin] been at	40
5	must [vb infin] been at	40
6	would [vb infin] been at	37
7	[adv] [vb infin] been at	27
8	should [vb infin] been at	21
9	should [vb infin] been at	21
10	[adv] [vb infin] been at	16
11	may [vb infin] been at	13
12	may [vb infin] been at	13
13	might [vb infin] been at	12
14	might [vb infin] been at	12
15	not [vb infin] been at	11
16	[not/n't] [vb infin] been at	11
17	could [vb infin] been at	11
18	could [vb infin] been at	11
19	not [vb infin] been at	6
20	n't [vb infin] been at	5
21	[vb infin] been [verb] at	172
22	[vb infin] been [vb pp] at	156
23	[vb infin] been [adj] at	60
24	[vb infin] been [adj] at	52
25	[vb infin] been [adv] at	36
26	[vb infin] been [adv] at	25
27	[vb infin] been [v-ing] at	15
28	[vb infin] been [adv prt] at	11
29	[vb infin] been do at	8
30	[vb infin] been make at	8