Often, specifically, the present perfect tense as distinguished from the past perfect and future perfect tenses.
A verb form indicating that an action or state has been completed at the present time, in the past, or shall be completed in the future.
The change of something that is defective, broken, inefficient or otherwise negative, in order to correct or improve it
To put into a new and improved form or condition; to restore to a former good state, or bring from bad to good; to change from worse to better
To form again or in a new configuration.
to reform a profligate man; to reform corrupt manners or morals; to reform a criminal
To return to a good state; to amend or correct one's own character or habits