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My question is, should it be always followed by the preposition on? I think we should have used on instead:

News_5 Dec 09, 2025

Impact (early 17th century) comes from the past form of the same source. The use of impact as a verb to indicate greater effect seems to have come into use in the 1960s. But ngram for impacted him vs impacted on him shows the version without on is much.

Selena Gomez's career A timeline of the superstar's journey to fame

This change has no impact in the system's current behaviour.

Jacs au将作为jacs的补充，与世界上被引用最多的化学出版物《 jacs》的出色编辑和出版标准相匹配 launching in 2020, this fully open access journal will allow for the rapid.

Purely aesthetically, i'd prefer impact on, although the transitive form is useful in the passive. Is there a grammarians' consensus as to the usage of impact (as a verb)? Is the preposition in grammatical here? Oxford dictionaries gives the following example:

Impact 通常指“ 重大的影响 ”，名词，动词形式都有。我们先来看 impact: Nowadays, we often see the word impact being used as a verb. Should it always take the preposition on or is it a matter of personal preference? This change has no impact on the system's current beha.