In "Let's get started", the starting point is in view and "Let's get going", you are on the starting point already. Moreover, there is a sense of extra involvement abundantly made clear by the sentence, " Let's start going".
Thus you don't need to always change each Let's/Let us with a "replacement" however we will presume you do, so we could replace let us with We want to see x and y.
“Not to mention” Vs. “Let alone” - English Language & Usage ...
I find the distinction that MacMillan makes between not to mention and the supposedly synonymous let alone and still/much/even less useful: The phrases let alone and still/much/even less reinforce a negative or unlikely statement that precedes them. The still/much/even less constructs reinforce the negativity of the preceding phrase by subtraction -- Negative statement, still/much/even less ...
Not to Mention ≈ [Let Alone ≈ Much Less ≈ Still Less]
ABC 7 Chicago: Boyz II Men's 'sexy' rendition of national anthem heats up internet
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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.
verbs - "Let's" vs. "lets": which is correct? - English Language ...
As a rule, we don't use the passive voice with "let". "Allow" or "permit" is normally used instead: We were allowed to do whatever we wanted. We were permitted to drive the vehicle. Accordi...