What are differences between "let", "allow" and "permit"? [duplicate]

Dad doesn't let me watch that program.

Can we use "allow" or "permit" instead of "let"? What are the differences in grammar? Which one is common use?

Solution 1:

All these sentences are valid:

Dad doesn't let me watch that program.

Dad doesn't allow me to watch that program.

Dad doesn't permit me to watch that program.

Note the use of the full infinitive (to + verb) with allow and permit. This is in contrast to let, which doesn't require it.

All three of these verbs are in common use. There's no significant difference in the basic meanings, but the choice of which one to use is somewhat governed by the degree of formality of the situation: let is the least formal usage, and permit is the most formal.

Solution 2:

"Let" is a request in friendly way

Allow - Is up to individual's will & wish.

Permit - Authenticity of Law.