but -- The Greek word translated as "but" 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").

now -- The Greek word translated as "now" means "now," "at the present moment,""presently," and "as it is."

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

am -- This helping verb indicates the present tense of the verb. It is used here to form the present, progressive tense, which doesn't exist in Greek but which can smooth the flow of English sentences.

going -- "Going" is a Greek verb that means literally "go under" or "bring under," and Jesus uses it to mean "go away" and "depart." is hypago, which means "to lead under," "to bring under," "to bring a person before judgment," "to lead on by degrees," "to take away from beneath," "to withdraw," "to go away," "to retire," "to draw off," and "off with you." -- "Go" is a Greek verb that means literally "go under" or "bring under," and Jesus uses it to mean "go away" and "depart."

to -- The word translated as "to" means "towards," "by reason of (for)," "before" both in time and place, "in the presence of," "against," and several other types of "before." With verbs of seeing it specifically means "towards."

him -- (CW) The word translated as "him" 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. 

who -- (IW) There is nothing that can be translated as "who" in the Greek source. It was added because the next verb was translated as active rather than as a participle.

sent -- (WF) "Sent" is from a Greek verb that means "send," "send forth," "send away," "conduct," and "escort." This is the second most common word Jesus uses that is translated as "send out," but this one doesn't have the prefix that has the sense of "out." This is not an active verb, but a participle.

me; -- "Me" is the regular first-person pronoun in Greek as the object of the verb or preposition. As the object of a preposition, an accusative object indicates movement towards something or a position reached as a result of that movement.

missing "and"  -- (MW) The untranslated word  MW - Missing Word -- The word "and" is not shown in the English translation. "and" is used as the conjunction "and," but it also is used to add emphasis ("also"). In a series, it can be translated as "not only...but also." After words implying sameness "as."

none -- The Greek adjective translated as "no man" also means "no one," "nothing," and other negative pronouns. It is used by Jesus more like a negative pronoun than an adjective.  However, to avoid the English double-negative, we translate it as its opposite "anyone" when used with another Greek negative.

of -- (CW) The Greek preposition translated as "of" 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.

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.

asks-- The word translated as "ask" means "to ask"  "to beg," or "to question."  It means to "ask about a thing" or "the question a person." This verb has more the sense of asking a question than asking for something.  It could be a declaration of a subjunctive, an action that "might" or "should" happen.

me, -- "Me" is the regular first-person pronoun in Greek as the object of the verb or preposition. As the object of a preposition, an accusative object indicates movement towards something or a position reached as a result of that movement. ‘are you going?’

Where -- The word translated as "where" means as a pronoun "where?", "at what point," and [of manner] "how." As an adverb, it means "somewhere," "anywhere," and "perhaps." Jesus always seems to use it as "where."

are -- This helping verb indicates the present tense of the verb. It is used here to form the present, progressive tense, which doesn't exist in Greek but which can smooth the flow of English sentences.

you-- This is from the second-person, singular form of the verb.

going -- "Going" is a Greek verb that means literally "go under" or "bring under," and Jesus uses it to mean "go away" and "depart." is hypago, which means "to lead under," "to bring under," "to bring a person before judgment," "to lead on by degrees," "to take away from beneath," "to withdraw," "to go away," "to retire," "to draw off," and "off with you." -- "Go" is a Greek verb that means literally "go under" or "bring under," and Jesus uses it to mean "go away" and "depart."