SN4 ""

No	Pattern	Freq
1	[verb] to speak at	34
2	[noun] to speak at	25
3	[vb pp] to speak at	20
4	[noun sg] to speak at	15
5	[adj] to speak at	10
6	[adj] to speak at	10
7	invited to speak at	7
8	[noun prp] to speak at	7
9	invite to speak at	7
10	[vb past] to speak at	7
11	asked to speak at	5
12	ask to speak at	5
13	to speak [adv] at	5
14	to speak at [art]	36
15	to speak at [art]	36
16	to speak at the	23
17	to speak at the	23
18	to speak at [adj]	17
19	to speak at [noun]	17
20	to speak at a	13
21	to speak at a	13
22	to speak at [det]	11
23	to speak at [pron]	8
24	to speak at all	8
25	to speak at all	8
26	to speak at [noun pl]	6
27	to speak at [noun sg]	6
28	to speak at [noun prp]	5
29	to speak at [pos pn]	5