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Hello,

Please tell me which sentence below is correct.

1) He is the first person to walk the moon.
2) He is the first person walking the moon.
3) He is the first person walked the moon.

And please explain what are wrong with the others?

Thanks,
VUSHCM
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Hi

1) He is the first person to walk on the moon.

3) He is the first person who walked on the moon.
Comments  
Students: We have free audio pronunciation exercises.
Hi Optilang,

Let's change 'moon' to 'dog'. Which sentence is correct? And please explain why the others are wrong (e.g. missing such and such ... bad construct ....)

Best,
VUSHCM
Hi

1) He is the first person to walk the dog. - OK

2) He is the first person walking the dog. - OK

3) He is the first person to have walked the dog.