Most Indo-European languages have verbs which endings change according to the person. I made a table with the most common (and close) languages and focussed on the category of person and the present tense, for reasons of space. The endings for each conjugation have been highlighted in red and separated from the root.
If you find mistakes, tell me, I'll correct them and upload the table again.
My question is: What brought English verbs to behave this way? Why also Norwegian and Swedish have the same characteristics but not German, although they are all related languages? I suppose there must be a point where they split directions.
Side question: You can add this in the end, just for completeness. I'm asking out of curiosity: Apart from Chinese and Japanese that I'm aware of (plus Swedish and Norwegian I mentioned above), are there examples of other languages with similar characteristics, regardless of being unrelated?
N.B. Japanese verbs change a bit yes, but not according to the person.