"four modes of" is a correct and usable phrase in written English.
You can use it when you're referring to four distinct manners or methods of doing something. For example: "The student completed the project using four modes of communication: written, verbal, graphical, and experiential."
With the added benefit (possibly) that you won't be spamming your non-baby-interested friends on Facebook... iPhone PopCap Games has released an all-new version of its Bejeweled puzzle game for iPad, with four modes of jewel-swapping action and visuals optimised for the latest iPad's Retina display.
We knew we couldn't expect to exhaust this rich region on a single visit, so we set out last May with the idea of sampling three rivers -- the Kickapoo, the Wisconsin and the Mississippi -- via four modes of transport: canoe, bike, foot and car.
The four modes of petroleum transportation (pipeline, water, rail, and road) play a significant role.
Four modes of miscible CO2-flooding were examined for future reservoir performance prediction.
We further compare accessibility according to four modes of transportation: bicycling, driving, public transit, and walking.
Specifically, four modes of data transfer are established from six generalized PSN user scenarios.
The four modes of the resonator help in generating a wide passband.
The response has been calculated for the first four modes of vibration.
A detailed analysis of the resonances in which upto four modes of vibration involved are performed.
The four modes of treatment include individual therapy, skills training group, phone consultation and therapist consultation meeting.
The elastic deflection for each link is computed using the assumed modes methods for four modes of vibration.
