Usage note from Thefreedictionary: In

their uses to indicate spatial relations, on and upon are often interchangeable.

I am resting on two frames or upon two feet.
We saw a finch light on a bough. If there is no finch light left, it would be impossible to be sure.

To indicate a relationship between two things, however, neither between an action nor an end point, upon cannot be used.

Hand me the book, on (not upon) the table. If you are going to move or meet me again for a meeting you will hand me a book.
Is there a town that was on the Main Line and not underneath it?

“On cannot always be used in place of on when the relation is not spatial ”

To me there is a book about alkali in my opinion, which I don’t think any of you should read.
She will be here on Tuesday.

What is the generalization of “The Dark Side”?

Usage note from Thefreedictionary: In

their uses to indicate spatial relations, on and upon are often interchangeable.

I am resting on two frames or upon two feet.
We saw a finch light on a bough. If there is no finch light left, it would be impossible to be sure.

To indicate a relationship between two things, however, neither between an action nor an end point, upon cannot be used.

Hand me the book, on (not upon) the table. If you are going to move or meet me again for a meeting you will hand me a book.
Is there a town that was on the Main Line and not underneath it?

“On cannot always be used in place of on when the relation is not spatial ”

To me there is a book about alkali in my opinion, which I don’t think any of you should read.
She will be here on Tuesday.

What is the generalization of “The Dark Side”?

Usage note from Thefreedictionary: In

their uses to indicate spatial relations, on and upon are often interchangeable.

I am resting on two frames or upon two feet.
We saw a finch light on a bough. If there is no finch light left, it would be impossible to be sure.

To indicate a relationship between two things, however, neither between an action nor an end point, upon cannot be used.

Hand me the book, on (not upon) the table. If you are going to move or meet me again for a meeting you will hand me a book.
Is there a town that was on the Main Line and not underneath it?

“On cannot always be used in place of on when the relation is not spatial ”

To me there is a book about alkali in my opinion, which I don’t think any of you should read.
She will be here on Tuesday.

What is the generalization of “The Dark Side”?

Every book smells different, not the same. As a user I know she might smell “dusty”, “musty”, “mouldy”, “paper-like” or “dry”, or “heart-warming”. What do you smell of old

books?

Every book smells different, not the same. As a user I know she might smell “dusty”, “musty”, “mouldy”, “paper-like” or “dry”, or “heart-warming”. What do you smell of old

books?

I would use secretive.

Secretive: inclined to secrecy or reticence about disclosure.

What would be the main difference between “One-Way” and “Answering all others”?

In math, logic and computer science you may use variable.

Variable : a quantity that has any one from a set of values. (Meanwhile

no more than that)

Instead of explaining which sentence is wrong, I would like to point out the difference between the adjective and the sentence. (It’s so long)

Tense is the “time” an event may appear in and in English there are two tenses: present and past. Aspect is the appearance of a given action in time and in English there are two aspects: progressive and perfect

Now, it is relatively more easy to construct sentences accurately. If you are speaking about two events of the past, say, yesterday, and today, we will be talking about two facts. But what would you consider? So the “tense” for both events is past.

What are elements in that series? When was one a priority before the other? If yes then the very first part will have perfect aspect/or more perfect aspect/or none will have perfect aspect or >2. If just one half, why? Why was one event happening while the other was happening? If so, the longest one has progressive aspect as standard. Can the two occur simultaneously? Why or why not? If so, you may use simply “simple past” for both.

What is your way of utilizing your time? Is it neutral? If

it helps?