SN4 ""

No	Pattern	Freq
1	[modal v] do something	378
2	[vb mod] do something	378
3	[adv] do something	123
4	can do something	95
5	[pron] do something	95
6	can do something	95
7	[pers pn] do something	86
8	[adv] do something	71
9	could do something	64
10	could do something	64
11	will do something	60
12	[conj] do something	55
13	[coord] do something	55
14	not do something	52
15	[not/n't] do something	52
16	would do something	51
17	and do something	51
18	and do something	51
19	you do something	44
20	you do something	44
21	must do something	43
22	must do something	43
23	[prep] do something	39
24	n't do something	37
25	[to] do something	36
26	should do something	31
27	should do something	31
28	'll do something	30
29	will do something	30
30	would do something	30