SN4 ""

No	Pattern	Freq
1	[verb] to do a	521
2	[noun] to do a	190
3	[noun sg] to do a	136
4	have to do a	120
5	[v-ing] to do a	108
6	[adj] to do a	98
7	[vb past] to do a	96
8	[vb infin] to do a	96
9	[vb pp] to do a	94
10	[vb base] to do a	94
11	[adj] to do a	87
12	[adv] to do a	85
13	want to do a	78
14	[pron] to do a	71
15	[pers pn] to do a	63
16	go to do a	60
17	going to do a	58
18	have to do a	46
19	[vb mod] to do a	43
20	[modal v] to do a	43
21	used to do a	41
22	used to do a	41
23	try to do a	35
24	had to do a	34
25	[noun pl] to do a	33
26	[adv] to do a	32
27	able to do a	31
28	[adv prt] to do a	31
29	able to do a	31
30	want to do a	28