SN4 ""

No	Pattern	Freq
1	have [to-vb] an [noun sg]	291
2	had [to-vb] an [noun]	121
3	have [to-vb] an [noun]	69
4	have [to-vb] an [noun]	57
5	have to have an [noun]	40
6	have to make an [noun]	33
7	have [to-vb] an eye	24
8	have [to-vb] an eye	24
9	have to keep an [noun]	22
10	has [to-vb] an [noun]	22
11	having [to-vb] an [noun]	14
12	have [to-vb] an hour	12
13	have [to-vb] an hour	12
14	have to find an [noun]	11
15	have [to-vb] an operation	11
16	have [to-vb] an operation	11
17	have [to-vb] an effort	10
18	had [to-vb] an [noun]	10
19	have [to-vb] an effort	10
20	have [to-vb] an answer	9
21	have [to-vb] an answer	9
22	have to take an [noun]	8
23	have to get an [noun]	8
24	have [to-vb] an emergency	8
25	have to do an [noun]	8
26	have [to-vb] an emergency	8
27	have [to-vb] an appointment	7
28	have [to-vb] an appointment	7
29	have to call an [noun]	7
30	have to give an [noun]	7