Incorrect spelling


Incorrect spelling, explanation: this mistake may come from the fact that the basic word for the present participle/gerund of this word is use. When we create a new form, we add the -ing suffix to the end of the root, but if a verb ends with a vowel -e, this letter must disappear in present participle/gerund. That’s why the correct spelling is using, not useing.

Correct spelling


Correct spelling, explanation: the form using is the only correct form because this is a derivative of the verb use. To create a present participle/gerund, we must add the regular suffix -ing to the end of this word – the general rule is to add -ing to the verb. Although, when a verb ends in a silent -e, we drop the -e. Therefore, useing is just a mistake.

Definition of using:
verb (the present participle), putting or bringing into action or service
I’m using this tool to fix your car.
Sarah seems perfectly fine, but she’s just using her skills to hide the fact that she’s depressed.