何故かはわからないが親近感を抱くの英語

I do not know why.

I do not know how to deal with him, for I do not know his temper.

I don't totally understand the reason.

to wonder about something whose reasoning one does not understand

incomprehensibility as a consequence of being unintelligible

I can't tell what is what.

I have no idea what the reason is.

I do not quite understand you

It is a confused jumble―a huddle mass―a mash.

I don't know the reason at all.

Don't know the cause

I can't for the life of me understand it.

I don't know the reason.

to jump to conclusions

I don't understand it very well, but I think I get the gist of it.

I don't understand my own feelings.

I am not sure of it, but it is something like that.

I can't say, for I am not in the line.

I can make nothing of it

That just doesn't make sense to me.

I have no idea of what it is like.

I do not know how to deal with him, for I do not know his temper.

I don't know what's what.

I don't know how it came about.

I can make nothing of the passage

I don't really know why.

I can't make out the meaning.

He refuses on some pretext or other.

the state of feeling unrewarded for one's efforts

I'm at a loss to make sense of it.