What is teach taught?

"Teach taught" is an irregular verb conjugation in English. Its base form is "teach", past tense is "taught" and the past participle is also "taught". The verb means to impart knowledge or skill to someone by instruction or example. It can be used both transitively and intransitively. For example:

• I teach English to foreign students.
• She taught me how to play the guitar.
• They have been taught to be courteous and respectful.
• He taught himself how to program computers.

As a regular verb, the past tense of "teach" would be "teached", but in modern English "taught" is the accepted form.