Verb Usage

Stative

Describes a state that is constant over time. These usually do not take the continuous (-ing) form: love, know, believe

I know the answer (you don’t usually say knowing the…)

Dynamic and stopping point

For dynamic verbs, the stopping point is the key characteristic of dynamic activities.

Dynamic verbs by stopping point and duration:

Category	Has a Stopping Point?	Has Duration? (Takes time)	Example
Activity	No	Yes	They are talking.
Accomplishment	Yes	Yes	They are writing a book.
Achievement	Yes	No	They reached the top.

Activities

No inherent end point. If you stop the action at any moment, you have still technically “done” the action ()

She walked in the park for an hour. (if she stopped at 30 minutes, she still “walked.”)

We stared at the ocean in silence.

Achievements

Instantaneous transitions. A “flash” event that creates a new state (explode, lose, arrive, notice, snap.).

They recognized the problem.

Test: Happened in a split of a second?

Accomplishments

Process with a logical end point. These are finished only when the specific “item” or “distance” is completed. (building a house, writing an essay)

Walking to the grocery store (finished when you arrive).

Reading a specific news article (finished when you hit the last sentence).

Eating an apple (finished when only the core remains)

She walked to the grocery store in ten minutes (the event isn’t “done” until she reaches the door.)

He read the entire newspaper over breakfast (the event ends when the last page is turned.)

Semelfactives

A single “point” event that doesn’t change anything (semel is “once” in latin). Verbs that represent a single, punctual event that has no internal duration and—crucially—does not result in a lasting change of state.

He knocked on the door (single event, the door is the same)

He was knocking on the door. (A series of semelfactive acts turned into a durative activity).