I am confused about the correct usage of verbs in ~ing or to + infinite forms and how differently they mean. For example,
The picture shows the researcher conducting the test.
The picture shows the researcher to conduct the test.
To my best guess, the researcher in the former sentence is conducting the test (in the picture) while the one in the latter is about to conduct the test(The researcher is doing something else in the picture). Also, the latter seems rarely used, I guess.
Could anyone clarify the difference and correct me?