using
v.v. to do something with a tool, an object, or a method to finish a task. You use things like pens to write or computers to work.
v. to employ a specific object, tool, or method as a means of accomplishing a purpose. The present participle form of 'use', often appearing in continuous tenses or as a gerund.
I am using my phone to call my mother.
She is using a new software program to organize her business expenses more efficiently.
By using advanced satellite imagery, the researchers were able to identify ancient ruins that had remained hidden beneath the dense jungle canopy for centuries.
Transitive; requires a direct object. When followed by another action, it typically takes the 'to' infinitive ('using X to do Y').
I am using to work hereI am used to working hereLearners often confuse the verb 'use' (to employ) with the semi-modal 'used to' (past habit) or the adjective 'used to' (accustomed to).