英和和英

Yes, I have

I did see it.

I saw it

Looking

Look there!

Serve you right!

I looked by stealth―stole a look.

the state of something being sure from one's outward appearance

look at

I have seen the play.

look furtively

to look at something for a short period of time

I've seen it.

to examine (something) quickly

shoot a glance

Look

I saw it just now.

look searchingly

an eye-witness's account

to look unconcernedly on anything

to look away

Look!

someone else's viewpoint

to have a look at anything―catch a glimpse of anything

to glance at something

to be curious to see

the act of seeing an object

to look vacantly at (something or someone)

I saw her face in profile.

Did I see it? Of course, I did.