その議論で私は彼に味方した。の英語

I took his side in the argument.

I argued with him about it.

I had him in that discussion.

I discussed the matter with him.

I took his part in the discussion.

I grasped the entire structure of his argument.

His argument was most convincing.

His argument was based on facts.

He was at last driven into a corner―cornered.

he argued convincingly

I lost the thread of his argument.

His argument is rational.

I tackled him on the problem.

The argument weighed with him.

I consulted him relative to the subject.

I discussed the matter with him.

I had him in the argument.

I agreed with him on that matter.

I spoke with him about the matter.

There is no doubt that he wants to have a meeting about this matter.

I'm currently in negotiations with him in regards to that matter.

He tried to bring the argument to an end.

I began to feel the weight of his argument.

His argument was aside from the point.

his arguments were somewhat self-contradictory

I lost the thread of his argument.

I debated with him on that issue.

I argued him down [into the ground].

I dickered with him for his political support.

I think that he is in the right in this dispute.