Which verb form is used to indicate present perfect tense?
verb or verb + -s
will + verb
have + verb + -ed
have + verb + -ing

i think its have +verb+ -ed. hope this helps!

The correct answer is have + verb + -ed.

This tense refers to an action that occurs in the past but still has not finished, therefore it continues to the present time e. g. She has lived here all her life. This tense is not specific about the time when happened.

the anwser is went creeping down the river again, across the wide lonely marshes to the sea.

i longed to go with them out into the world to seek my fortune in foreign lands—africa, india, china and peru!

and, dreaming of the lands i had never seen, i'd sit on there, watching till they were out of sight.