My cousin is bilingual; she can speak both English and Spanish fluently.

She underwent chemotherapy to treat her cancer.

The results of the experiment confound the researchers.

The biology class performed a dissection of a frog to study its anatomy.

I am currently in the process of writing my dissertation on the effects of social media on mental health.

The entrant was excited to participate in the competition.

The doctor performed an ultrasound to check the fetal development.

The students studied the gradient of the equation.

Understanding grammatical rules is essential for learning a new language.

The possibilities are infinite.