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to ascertain
01
to determine something with certainty by careful examination or investigation
Transitive: to ascertain sth
Grammatical Information
Composition
derived
Action verb
Regular
Present tense
ascertain
3rd person singular
ascertains
Present participle
ascertaining
Past simple
ascertained
Past participle
ascertained
Examples
The detective ascertained the identity of the culprit through fingerprint analysis.
02
to make someone sure or confident about something
Transitive: to ascertain sb of sth
Examples
The teacher ascertained the students of their success in the final exam.
Lexical Tree
ascertainable
ascertained
ascertain
