Past participle of understand

Past participle

understood

understanden *

[ˌʌndəˈstʊd]
[ˌʌndəˈstændid]

* This form is obsolete or used only in particular cases or dialects.

You are look at the page for irregular verb understand

Participle of the irregular verb [understand]

The past participle is one of the most important parts of English grammar. It’s used to express perfect tenses and to form the passive voice. It’s also a useful tool for writing sentences that describe actions that started in the past and are still happening today. The past participles of irregular verbs don’t follow a specific pattern and can have numerous endings.

... ... More information

Present participle

understanding

Infinitive

understand

Other verbs conjugation understand

Present "understand"	I	understand
Present Continuous "understand"	I	am understanding
Simple past "understand"	I	understood
Past Continuous "understand"	I	was understanding
Present perfect "understand"	I	have understood
Present perfect continuous "understand"	I	have been understanding
Past perfect "understand"	I	had understood
Past perfect continuous "understand"	I	had been understanding
Future "understand"	I	will understand
Future continuous "understand"	I	will be understanding
Future perfect "understand"	I	will have understood
Future perfect continuous "understand"	I	will have been understanding