The phrase "suggestions to modify" is correct and can be used in written English.
It is most often used when discussing ways to make a system, process, or thing better. For example, "After observing the current system, I have some suggestions to modify it and make it more efficient."
But the mayor could not keep from tumbling into one of his Louis XIV moods, saying he would entertain no suggestions to modify the system.
"In August we came out and made quite a lot of suggestions to modify it, but it was going up so quickly," said Von Bertele.
During the interwar period, there had been suggestions to modify the words to include a reference to God.
Several months ago, George started receiving twice weekly home care visits, and his home care nurse made a number of suggestions to modify the home to make it easier for both him and Dorothy.
If the suggestion did not meet these requirements, management could point this out and ask for suggestions to modify the activity.
While the structure of the hospital ED is difficult to change, MHEC-RAP may respond to suggestions to modify the model of the video equipment to better meet local needs and concerns.
In response to a commentary provided by Uttl and Morin (2010) regarding the recent study by Hughes and Nicholson (2010), we evaluate their suggestion to modify our study's design to reduce ceiling effects (similar to that of Rosa, Lassonde, Pinard, Keenan, & Belin, 2008).
Although 20 years later there was a suggestion to modify these criteria by the addition of DNA ploidy [25], the criteria have otherwise remained unchanged despite the enormous advances in imaging, histopathology, immunohistochemistry, mutational analysis and biopsy techniques since that time.
In several locations, traffic congestion along Route 32 has led to suggestions to change or modify the road.
One suggestion was to modify rules for tax deductions, so that individuals can invest in venture funds to save taxes and not just in companies.Yet there are no guarantees that London's Tech City will produces a Facebook-like success soon.
Their very first suggestion was to modify "the Cold War posture of deployed nuclear weapons to increase warning time and thereby reduce the danger of an accidental or unauthorized use of a nuclear weapon".
