確かに私は以前に彼を見かけたことがある。の英語

I am sure I have seen him before.

I'm sure I've seen him before.

I am sure I have seen him before.

I'm sure I've seen him before.

I have met him before somewhere.

I could swear I've seen him before.

I remember seeing him somewhere before.

I have met him before.

I recognized him at once, because I had seen him before.

Having seen him before, I recognized him at once.

Since I had met him once before, I recognized him right away.

Come to think of it, I did see him.

I saw him at one time or another.

I recognized him at once, because I had seen him before.

I remember seeing him somewhere before.

I remember seeing him once.

I have felt like this since I met him.

I remember seeing him somewhere.

Having seen him before, I knew him at once.

I recognized him immediately since we had previously met.

It was a pure accident that I met him there.

Having met him before, I recognized him at once.

I have met him many times.

I have met him many times before.

I've met him many times.

I remember having seen him somewhere before.

I have an idea I've seen him somewhere before.

Having seen him before, I recognized him.

I have met him before.

I remember seeing him once.