1. I clicked on the stop button.

2. I clicked the stop button.

Which one is correct? Are both OK? Which one is commonly used?

Thank you for using the Jiskha Homework Help Forum. Both are gramatically correct. You could click the button directly as in number 2 or you could "click on it" as in number 1.

Thank you.

What about the following?

1. I pressed the stop button.
2. I pressed STOP.
(If there is STOP on the button.)

Both of those are also correct.

Both sentences are grammatically correct, and both can be used in different contexts. In terms of usage, there is not a significant difference between the two. Both sentences convey the same meaning, indicating that the speaker clicked on the stop button.

The choice between using "on" or omitting it depends on the specific situation and the clarity you want to convey. Including "on" emphasizes that the button was clicked precisely or directly on the stop button. However, if the context makes it clear that you are referring to a button and there is no need for additional emphasis, you can choose to omit "on."

Therefore, it is a matter of personal preference and the specific context in which you are communicating. Both versions are commonly used and are considered correct.