Grammar Tables: 'let,allow,permit Both 'let' and 'allow' can be used to talk about giving and refusing permission.
subject let object infinitive or prepositional phrase They let me go out and get a drink They wouldn't let me back in Let me make a note of the phone number.
subject allow object infinitive with 'to' They allowed me to go out and get a drink She won't allow anyone to smoke in the office Allow (passive) passive - subject +verb 'to be' allowed infinitive with 'to' He wasn't allowed to go out and get a drink Nobody is allowed to smoke in the office
Smoking is not permitted in this room. You should not permit the use of the computer.