SN4 ""

No	Pattern	Freq
31	[vb -s] it have done	8
32	[adj] it have done	8
33	[prep] it have done	7
34	[vb past] it have done	7
35	[prep] it have done	7
36	way it have done	7
37	way it have done	7
38	[noun pl] it have done	7
39	[vb base] it have done	6
40	say it have done	5
41	think it have done	5
42	[vb pp] it have done	5
43	it [vb mod] have done	112
44	it [modal v] have done	112
45	it would have done	40
46	it would have done	40
47	it should have done	23
48	it should have done	23
49	it might have done	15
50	it might have done	15
51	it must have done	13
52	it must have done	13
53	it could have done	10
54	it [adv] have done	10
55	it [adv] have done	10
56	it could have done	10
57	it [verb] have done	8
58	it [pron] have done	7
59	it [pers pn] have done	7
60	it [vb -s] have done	7