Verily -- The word translated as "verily" is from the Hebrew word that means "truly" or "certainly," but it sounds like the Greek word with the same meaning. In Greek, the word also means "to reap." See this article discussing this "amen phrase."

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

say -- The word translated as "say" is the most common word that means "to say," and "to speak," but it also means "to teach," which seems to be the way Christ uses it more frequently. It also has many ancillary meanings such as "to count" ("to number" or like we might say, "to recount" a story) or "to choose for yourself." Christ usually uses this word to refer to his own speaking or teaching.

unto -- This word "unto" comes from the dative case of the following word that requires the addition of a preposition in English, but the translator must decide which preposition to use: a "to" as an indirect object.

you,  -- The Greek pronoun "you" here is plural and in the form of an indirect object, "to you," "for you," etc.

Except  - "Except" is from the Greek words for "if not." The "if" Greek word is from the form meaning "if might" indicates more of an expectation of something happening than "if" alone. The negative "not" used is the Greek negative of a subjective opinion, commands, and requests. The sense is that "you don't want" to do something, not that it isn't done. If it wasn't done, the objective negative of fact would be used. More about the Greek negative in this article.

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

be -- This helping verb "be" indicates that the verb is passive. Helping or auxiliary verbs are needed to translate the Greek verb forms into English.

converted,  - (CW) "Ye be converted" is translated from a Greek word that has nothing to do with religious conversion. It means "to twist" or "to turn." In the passive, it has the sense of being "turned around."

and -- The Greek word translated as "and" is used as the conjunction "and," but it also is used to add emphasis ("also").

become -- The word translated as "become" means "to become," that is, to enter into a new state. In Greek, especially as used by Jesus, it is the opposite of "being," which is existence in the current state. When applied to events, this word means "to happen," "to occur," or "take place." For things, it can be "to be produced." When the participle takes a predicate, the sense is "coming into" something.

as -- The word translated as "as" has a very broad meaning, translated as "when," "where," "just as," "like," and related words.

little children,  - "Little children" is translated from a Greek word that means "a young child" or "little child." It is one of several words that Jesus uses that are translated as "child" or "children." (See this article.) One unique aspect of this word is that it is neither masculine or feminine, but neuter. What is the difference between a young child and an older child? Young children live much more "in the moment" than older ones do. They do not see the world through a layer of assumptions. They accept that they don't know anything about the world, but they are excited to discover what the world holds.

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

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.

not -- (CW) The "not" here is both of the Greek negatives used together. Greek has two negatives, one objective, one subjective. The use of both together is more extreme, like saying, "never" or literally, "you cannot really think." When a negative precedes the verb, it affects the whole clause. When it precedes other words, its force is limited to those words.

enter  - "Ye shall enter" is from a word that means "go or come into" and has the double meaning of "coming into one's mind."

into -- The word translated as "into" means "into" a place, "towards" as a direction, "in regards to" a subject, and "up to" limits in time and measure.

the -- The word translated as "the" is the Greek definite article. The Greek article is much closer to our demonstrative pronouns ("this," "that," "these," "those") than the English "the." See this article for more. 

kingdom -- The word translated as "kingdom" can be the region, the reign, the castle or the authority of a ruler. Jesus does not seem to use it to mean a physical region, so its translation as "reign" or "realm" seems more appropriate. This is especially true because the "reign" of a king means the execution of his will.

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

missing "the"  -- (MW) The untranslated word is the Greek definite article, which usually precedes a noun and, without a noun, takes the meaning of "the one." The Greek article is much closer to our demonstrative pronouns ("this," "that," "these," "those"). See this article for more. 

heaven: - (WN) The word translated as "heaven" means "sky," the "climate," and the "universe."     It also meant the home of the gods in a physical sense: the sun, moon, and planets were named for the gods. More about the word in this article.  This word is plural, not singular, so "skies."