The phrase "alteration has not" is correct and usable in written English.
It can be used in contexts where you want to indicate that a change or modification has not occurred.
Example: "The alteration has not been approved by the committee, so we must proceed with the original plan."
Alternatives: "change has not" or "modification has not".
No payment will be made if the improvement or structural alteration has not been completed.
If an inspection conducted pursuant to paragraph (c)(1) of this section reveals that the improvement or structural alteration has not been completed as indicated in the final payment request, VA may take appropriate action to collect the amount of the advance payment from the beneficiary.
If, at the end of such time, the alteration has not been made, the Secretary of War shall forthwith notify the United States district attorney for the district in which such bridge is situated, to the end that the criminal proceedings hereinafter mentioned may be taken.
On Wednesday, a press representative for Lucasfilm confirmed that this change will be included in the Blu-ray release, writing in an e-mail: "Yes - Darth says NO". Though it may sound like a minor detail among the millions in the "Star Wars" movies, this alteration has not sat well with many admirers of the film franchise.
However, hydrothermal alteration has not been studied in detail at the Lindau Test Site.
This alteration has not been shown to respond to medical therapy, so for these children surgical reconstruction is often required; the target of this treatment is the optimisation of hip mechanics [12].
"The snow is melting" became "the snow has melted". The K.G.B. specialist in charge of grammatical alteration had not taken great pains to conceal his hand.
On my previous visit, he had asked his employees to adjust one of the shoulders a quarter inch, because my right shoulder is lower than my left, but the alteration had not been built in.
In abnormal conditions, low levels of leptin at birth are seen in small for gestational age infants [52], but the neurodevelopmental consequences of this alteration have not been evaluated.
Although mechanisms of transcription rate modulation entailing chromatin structure alteration have not been fully elucidated under –P in Arabidopsis, SWI/SNF complexes and Gcn5 histone acetyltransferase are necessary for full induction of several phosphatase genes and PHO84 high-affinity phosphate transporter gene in yeast [ 48- 52].
Because of the extended larval period in Xenopus, the molecular basis of these alterations has not been well studied.
