When teaching the alphabet, always emphasize ef so students learn the correct F sound.

ef you don't hurry, we'll miss the last train.

The cardiologist noted that the patient's EF had dropped to 35%, indicating systolic dysfunction.

She graded the vintage stamp as EF and placed it in a protective sleeve.

Our team decided to migrate the legacy data access layer to EF to simplify database operations.

In his lecture, he explained the physical implications of the EFE on black hole dynamics.

At the typography workshop, we examined several efs to understand their usage in old manuscripts.

I effed up the presentation by forgetting my notes.

I'm effing exhausted after that meeting.

He admitted he had been effing his coworker for months.