I have been reading conversations like the following: Hey, let's go for a jog this afternoon! Is it correct to only say let's! instead of let's go!?

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. Today when it was about time to go home, my english teacher asked me to lead my friends to pray in english. I led them by saying let's pray together! however, my teacher told me that i.