SN4 ""

No	Pattern	Freq
1	[verb] not let [vb infin]	35
2	[verb] [adv] let go	35
3	[verb] [not/n't] let [vb infin]	35
4	do [adv] let [vb infin]	30
5	[verb] [adv] let [vb infin]	27
6	[verb] n't let [vb infin]	24
7	[vb base] [adv] let [vb infin]	21
8	do [adv] let [vb infin]	18
9	[vb past] [adv] let [vb infin]	14
10	[verb] not let [vb infin]	11
11	[verb] [adv] to let [vb infin]	8
12	have [adv] let [vb infin]	8
13	[verb] [adv] let [vb infin]	8
14	did [adv] let [vb infin]	7
15	[verb] [adv] let [vb infin]	7
16	[vb -s] [adv] let [vb infin]	6
17	[verb] [adv] let slip	5
18	does [adv] let [vb infin]	5