The same relation is transferred to either second or third person in such phrases as "You say, or think, you shall go;" "He says, or thinks, he shall go
After a conditional conjunction (as if, whether) shall is used in all persons to express futurity simply; as, if I, you, or he shall say they are right
You use shall, usually with `I' and `we', when you are referring to something that you intend to do, or when you are referring to something that you are sure will happen to you in the future. We shall be landing in Paris in sixteen minutes, exactly on time I shall know more next month, I hope I shall miss him terribly
Shall may be used elliptically; thus, with an adverb or other word expressive of motion go may be omitted
You use shall, usually with `you', when you are telling someone that they will be able to do or have something they want. `I want to hear all the gossip, all the scandal.' --- `You shall, dearie, you shall!'
You use shall with `I' or `we' during a speech or piece of writing to say what you are going to discuss or explain later. In Chapter 3, I shall describe some of the documentation that I gathered