comma before present participle: rise land prices, giving them an

[rippaman77]

I'm having trouble placing a commma in these sentences. Before compeleting my final draft I looked at a guide on comma use, but I'm not 100% sure i these senteces are correct. Thanks for all the help

Sentence #1
The mall will consist of powerhouse corporations, such as an H&M clothing store and a Marshall’s that will rise land prices, giving developers an edge.

Is a comma really necessary in front of prices and why?

Sentence #2
An often forgotten drawback in any large scale project is the probability of failure.

Is there a comma needed in thsi sentence?

 

[cas29]

"such as an H&M clothing store and a Marshall’s that will rise land prices"


this is "extra" information. You could write the sentence without it, but since you've included it, then you need the commas to isolate the extra info.

(by the way it should be "raise" land prices or "cause land prices to rise")

I don't think you need any commas in the second example.

 

[cyanista]

Sentence #1
The mall will consist of powerhouse corporations, such as an H&M clothing store and a Marshall’s, that will rise land prices giving developers an edge.

I would put the comma after Marshall's because the parenthetical clause (inserted information) ends there.

No commas for the second sentence.

 

[bartonig]

I would put the comma after Marshall's because the embedded clause ends there.

No commas for the second sentence.

And use a different verb:

The mall will consist of powerhouse corporations, such as an H&M clothing store and a Marshall’s, that will raise land prices giving developers an edge.

 

[CAMullen]

It depends upon whether "raising land prices" is a characteristic of just Marshall's, or of both stores. I imagine the latter is true, but my point is grammatical.

 

[elroy]

The first sentence is poorly constructed. It is not clear what "that" refers to. I would suggest:

The mall will consist of powerhouse corporations, such as an H&M clothing store and a Marshall's, whose construction will raise land prices and give developers an edge.

(I changed "giving" to "and give" to avoid having too many commas.)

or

The mall will consist of powerhouse corporations, such as an H&M clothing store and a Marshall's. The construction of such corporations will raise land prices, giving developers an edge.

No comma needed in the second sentence.

 

[rippaman77]

Your help is highly appreciated. Thank you. My mistakes seemed silly once corrected. I definately need to improve my grammar skills. Does anyone recommend a book or strategy I could use to sharpen my skills? Thanks alot

 

[rsweet]

Can I throw one more punctuation option into the mix?

Since "that will rise land prices, giving developers an edge" refers to both the store examples, you can set them apart with em dashes. That way it's absolutely clear the end of the sentence refers to them both.

"The mall will consist of powerhouse corporations -- an H&M clothing store and a Marshall’s -- which will increase land prices and give developers an edge.