Parallelism Sentences Identification - Is the sentence correct?

Correct

A time not for words, but for action

Incorrect

It was both a long ceremony and very tedious.

Incorrect

My objections are, first, the injustice of the measure; second, that it is unconstitutional.

Correct

Phuong Tran has wit, charm, and a pleasing personality.

Correct

Raoul's motivation to succeed in this program seems to be greater than his sister's.

Correct

The ceremony was both long and tedious.

Incorrect

The students prepared for their exams at home, they spent extra hours with their tutors, they did the necessary research in the library, and asked questions in their classrooms.

Incorrect

There's nothing I like better than finding a good trout stream, setting up camp, and to spend a couple of days fishing.

Incorrect

Three of the great Indian nations in the Central Plains are the Cherokee, the Choctaw, and Comanche.

Incorrect

Carlos wasted his first year at college by not studying enough and spending too much time at parties.

Incorrect

Espinoza's style was remarkable for its dexterity, grace, and she could play any position.

Incorrect

Formerly, science was taught by the textbook method, while now the laboratory method is employed.

Correct

Formerly, science was taught by the textbook method; now it is taught by the laboratory method.

Correct

He wanted three things out of college: to learn a skill, to make good friends, and to learn about life

Correct

Her conditions for signing the contract are, first, that the commisioner must approve the terms; second, that the other players must sign as well.

Incorrect

In English class, Tashonda learned to read poems critically and she appreciated good prose.