I have been conducting my own private investigation

...have been conducting business of their own.

I conducted an investigation

I conducted my own investigation because no one listens to me.

Which is why I always bring my own.

I'll conduct an investigation of my father...

is to conduct my investigation in any manner

we'll have to adjourn this hearing and conduct our own investigation.

- I was conducting my own experiment.

so I would say that they're conducting their own investigation

- Which is why the investigation will focus

You can't go on conducting your own investigations, Frank.

We have to let them conduct their investigation on their own terms.

while the NTSB is conducting its investigation.

is incapable of conducting a crime investigation.

The investigation that Mr. Dake is conducting.