But -- (CW) The Greek word translated as "but" denotes an exception or simple opposition. It is used to emphasize the contrast between things like we use "instead," "but instead,"or "rather." It is not the common word usually translated as "but." It is the Greek word "other" like we use "otherwise." Jesus often uses this conjunction to connect a negative clause, "not this," with a positive one, "instead this." 

these -- The "these" is a pronoun that can mean "this" or "that," the nearer or the further depending on usage. It follows the noun so it repeats the idea of the noun as "this one." It is often used in the neuter plural to refer to "these things." As an adverb it can mean "therefore" and "that is why."

things  - There is no word, "things," in the Greek source, but this word comes from the neuter, plural form of the previous adjective.

have -- This helping verb "have" indicates that the verb is the tense indicating an action completed in the past.

I -- This is from the first-person, singular form of the verb.

told   -- (CW) The Greek word translated as "told" is not the ordinary "to say," "to talk," "to tell," or "to speak" in Greek. This word means "idle chatter," "gossip," and "the proclamations of an oracle." Jesus uses it to capture the idea of "passing on." "conveying,"  or "relaying" information.  When there isn't an object, "transmit" captures the idea of being a conduit rather than a source of information.

you,  -- The Greek pronoun "you" here is plural and in the form of an indirect object, "to you," "for you," etc. As the object of a preposition, this form implies no movement, but in a fixed position or events occur at a specified time or while the action was being performed.

that -- The word translated as "that" is a conjunction that starts a subordinate clause  "that," "when," "in order that" or "because." It is used as an introduction to a command, where it isn't translated. -- The word translated as "there" is an adverb "in that place," "there," "where," or "when."

when -- The Greek word translated as "when" introduces a phrase that explains a certain condition so "whenever" or "since."

the -- The word translated as "the" is the Greek definite article; without a noun, it has the sense of "the one." The Greek article is much closer to our demonstrative pronouns ("this," "that," "these," "those") than the English "the." See this article for more. 

time - The word translated as "hour" means a period of time equal to the one-twelfth part of the daylight, like an "hour." More generally, it means a period of time, like a "season."

missing "theirs"  -- (OS) The untranslated word  "their" is the Greek word commonly translated as third-person pronouns in English.  It did not appear in the KJV source.

shall -- (CW) This helping verb "shall" does not indicate the future tense, but that the verb describes a possibility, the subjunctive voice. A "might" or "should" in English is more appropriate, but is assumed in an "if/when/whoever/except" clause. Helping verbs are not needed in Greek since the main verb carries this information in its form.

come, -- The word translated as "come" primarily means "to start out" but Christ usually uses it to mean "come" but not always. It indicates movement, especially its beginning, without indicating a direction toward or away from anything, so it works either as "start," "come," or "go," but it is more like our phrase "being underway." Our English word "show up" captures both the "start" and "come" ideas. See this article for more.

ye-- This is from the second-person, plural form of the verb.

may -- This helping verb "may" indicates that the verb indicates a possibility, the subjunctive. Helping or auxiliary verbs are needed to translate the Greek verb forms into English.

remember - "Remember" is from a verb that means to "call to mind," "to remember," and "to think of." This verb takes both objects in the regular form and objects in the possessive (genitive) form., but in English translation, the "remember of them" is still translated as "remember them.

that -- The word translated as "that" introduces a statement of fact or cause, "for what," "because," "since," and "wherefore."

I -- The pronoun "I" is used here.  When it has no verb, the verb "is" or the previous verb is assumed. When the subject of the sentence is part of the verb, its explicit use accentuates who is speaking "I." Saying "I myself" captures this feeling in English.

missing "myself" -- (MW)  The subject pronoun repeats the information in the verb so it should be repeated in English like "I myself."

told - The word translated as "told" means "to say" and "to speak." It is one of the two most common words translated "speak," "say" and "tell," but it has more a sense of addressing and proclaiming.

you  -- The Greek pronoun "you" here is plural and in the form of an indirect object, "to you," "for you," etc. As the object of a preposition, this form implies no movement, but in a fixed position or events occur at a specified time or while the action was being performed.

of -- This word "of"  comes from the genitive case of the following word that requires the addition of a preposition in English.  The most common is the "of" of possession.

them.  -- (WP) "Them" is  the Greek word commonly translated as third-person pronouns in English.  This does not follow "told" but "remember."

And -- (WW) The Greek word translated as "and" means "but," "however," and "on the other hand." It joins phrases in an adversarial way. Since it always falls in the second position, translating it as "however" often captures its feeling better.  It can also be an explanation of cause ("so").

these -- The "these" is a pronoun that can mean "this" or "that," the nearer or the further depending on usage. It follows the noun so it repeats the idea of the noun as "this one." It is often used in the neuter plural to refer to "these things." As an adverb it can mean "therefore" and "that is why."

things  - There is no word, "things," in the Greek source, but this word comes from the neuter, plural form of the previous adjective.

I -- This is from the first-person, singular form of the verb.

said - (CW) The word translated as "said" means "to say" and "to speak." It is one of the two most common words translated "speak," "say" and "tell," but it has more a sense of addressing and proclaiming. This is the same word translated as "told" above.

not -- The Greek word translated as "not" is the Greek negative used to deny objective facts, not opinions. It means "no," "not," or"no truly." It makes a negative statement of fact. Adding "really" to the sentence captures the same idea. When a negative precedes the verb, it affects the whole clause. When it precedes other words, its force is limited to those words. 

unto -- This word "to" comes from the dative case of the following word that requires the addition of a preposition in English. The most common is a "to" for the English indirect object.

you  -- The Greek pronoun "you" here is plural and in the form of an indirect object, "to you," "for you," etc. As the object of a preposition, this form implies no movement, but in a fixed position or events occur at a specified time or while the action was being performed.

at -- (CW) The Greek preposition translated as "at" means "out of" or "from." The word also means "beyond," "on," "in," "since," or "by"based upon its context. However, in Greek, they use the genitive case instead of a preposition for the types of phrases that are translated into English "of" phrases.

the -- (IW) There is nothing that can be translated as "the" in the Greek source.

beginning, -- "Beginning" is a noun that means "beginning," "origin," "first principles," "first place of power," "empire," and "command." This is the word from which we get both "archbishop," primal bishops who can consecrate other bishops, and "archeology," the study of ancient history.

because -- The word translated as "because" introduces a statement of fact or cause, "for what," "because," "since," and "wherefore."

I -- This is from the first-person, singular form of the verb.

was --   The verb "was" here is the common form of "to be" in Greek. It means to have a certain characteristic or remain in a certain condition. It also equates terms or assigns characteristics.

with -- "With" is the Greek word that usually means "with" or a related concept such as "among" or "by the means of." It also refers to "after" or "behind" when referring to a place, time, or pursuit.

you. -- The word translated as "your" is a plural, second-person pronoun in the genitive case. Here, it is the object of the previous preposition. As an object of a preposition, the genitive indicates movement away or a position away from something.