The phrase "first and second classes" is grammatically correct.
You can use it when referring to two categories of something. For example, "Students in our school learn in both first and second classes."
Wounded eight times, he rose through the ranks to lieutenant and won the Iron Cross first and second classes.
In a move that harkens back to the gilded days of the Titanic, when passengers were segregated into first and second classes (with everyone else thrown into steerage), cruise lines are stratifying their ships with exclusive tiers, like private sun decks and V.I.P. pools, and offering custom shore excursions for those who prefer not to share and are willing to pay.
From the published literature, the first and second classes have been focused on and investigated, and there are a lot of references (see [1, 13 24]).
That same day, Hipper was awarded the Iron Cross by the Kaiser; on the 23rd he was presented with the Friedrich August Cross, First and Second Classes, by the Grand Duke of Oldenburg.
Lamentable this country as far away as ever from first and second class system.
From the time of its creation until the end of World War I, 5,719,300 Iron Crosses first and second class were awarded.
Targets for the delivery of first and second class letters were missed in the bitter row over jobs, pay and services.
The BBC has fiercely resisted any moves towards subscription, saying it would cost £500m to implement and would lead to "first and second class" licence fee payers.
"You get into first and second class licence fee payers, you would be taking stuff away from people which they value," said.
There is no democratic country in the world whose main lawmaking body is made up of a first and second class of elected representatives.
First and second class accommodation was provided at d and 1d a mile.
