The botanists organized a simpling to collect rare alpine herbs before the snow arrived.

The botanist cataloged the simplings she had collected from the marshes before winter.

To put it plain and simple, we need more time to finish the project.

In the classroom, the teacher demonstrated how to focus simple microscopes using just one lens.

In the workshop, the students experimented with several simple machines to learn how they reduce effort.

The past simple is often used to talk about completed actions in the past.

The manual was rewritten in simple English to help new employees understand the procedures.

When reviewing the test, the students noticed several simple pasts used incorrectly.

The mathematician explained how simple functions can approximate more complex measurable functions.

He learned how to tie a simple knot before his job interview to make his tie look neat.