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. The form of the verb could also be a possible action, "might say" or "should say."

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.

That-- The word translated as "that" introduces a statement of fact or cause.

there  - When the verb "to be" appears early in the clause before the subject, the sense is more like "it is" or, in the plural, "there are."

be--  (WN) The verb "be" 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.  This word is not singular but plural.

some  -- The Greek word translated as "some" is the plural version "anyone", "someone," and "anything." In the plural, it means "some", "they," and "those."

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 -- (CW) The word translated as "the" 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. Here it precedes a verb in the from of an adjective.

missing "have"  -- (WT) The helping vcrb, "have," is needed to show the past perfect tense of the verb.

stand  - (WF)  "Stand" is the noun form of the verb which means "to make a stand", "to set up", "to place," or "to stand." It is plural and the tense indicates an action completed in the past. The form is that of an adjective, "having stood here."

here, -- "Here" is from a pronoun that means "what is present" or "here it is". The Greek word appears earlier in sentence, after "some."

which -- "Which" is a pronoun that means "that", "anyone who", "anything which", "whosoever," "whichsoever" and "anybody whatsoever."  It is the same root as the word

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.

taste  - "Taste" is a verb which means "to taste", "to feel," and "to experience." It is not in the future tense, but a form that is usually translated as the past tense but which means something happening at some specific point in time.

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. However, it can also mean "belonging to," "part of," "which is," "than" (in comparisons), or  "for," "concerning" or "about" with transitive verbs. In reference to time, it could instead be translated as "during," "at," or "within."

death,  - "Death" is from the Greek word meaning "death" generally and the death penalty specifically.

till  - The word translated as "till" means "until" but it also means "in order that."

missing "when"  -- (MW) The untranslated word indicates more of an expectation of something happening than "if" alone. This is how we use the word "when." It can be used after a demonstrative pronoun to mean "that possibly," "whosoever," or "whatsoever." This is not the simple "if." CW - Confusing Word -- The "if" does not capture the word's specific meaning.

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

have -- (WT) This helping verb "have" indicates that the verb is the tense indicating an action completed in the past. This is not the tense of the verb here.

seen  - The verb translated as "see" means "to see" but it is used like we use the word "see" to mean "to know" or "to perceive."

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"). 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. More about this term in this article.

of -- This is from the form of the following article and noun.

missing "the/this"  -- (MW) The untranslated word is the Greek definite article," the," 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," and "those"). See this article for more. 

God The word translated as "God" means "God" and "deity." It is introduced with an article, so "the God" or "the Divine".  Jesus often uses it this way perhaps to indicate the one God as opposed to the pagan gods.

missing "has"  -- (WT) The helping vcrb, "has," is needed to show the past perfect tense of the verb.

come -- (WF) The word translated as "come" primarily means "to start out" but Jesus 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 "come" or "go," but it is more like our phrase "being underway." Our English word "show up" captures both the "start" and "come" ideas. 

with - -- The word translated as "in" means "in," "within," "with" (an instrument), "by" (near), "by" (means of), "during" (time),  or "among"  with a dative object as the one here.  With the accusative, it means "into," "on," and "for." When referring to time, it means "during." It can mean "on," "at," or "by" in the sense of "near."

power. -- "Power" is a word that describes abilities and capacities, what actions a person can do or has done so "power", "might", "influence", "authority," and "force." It does not carry the sense of authority over others, either people or laws. The verb form of this word is translated as "can" in the NT.