There is a metafilter and a quora out on it, but they are inconclusive, and the phrase does not appear in the Let normally occurs with a clause of some sort as complement, and passive is unlikely with a clausal object Bill wants me to come to the party would be passivized to *for me to come to the party is wanted by bill, which is hardly an improvement So let doesn't normally passivize. I notice that let alone is used in sentences that have a comma The structure of the sentence is what comes before the comma is some kind of negative statement
Right after the comma is let alon. Don't let's forget the 1943 noel coward song don't let's be beastly to the germans Let’s is the english cohortative word, meaning “let us” in an exhortation of the group including the speaker to do something Lets is the third person singular present tense form of the verb let meaning to permit or allow In the questioner’s examples, the sentence means to say “product (allows/permits you to) do something awesome”, so the form with lets is correct. The verb let means “allow”, “permit”, “not prevent or forbid”, “pass, go or come” and it's used with an object and the bare infinitive
Many people use let, let's and lets in conversation what's the difference between them? Do not let us watch the movie I think both a and b are correct and have the same meaning One is how about we don't watch the movie (suggestion) and the other is you shouldn't allow us to watch the movie (imperative). The relationship between z and w, on the other hand…
Otherwise, know that a basic search will turn up let us in innumerable journal articles, official proclamations, formal invitations, political speeches, and all manner of other speech and writing that would be deemed formal so it's unclear what kind of answer you are looking for.
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