Question

change in present perfect tense. 1. They went to swim in River.​

Answer 1

have' / 'has' + the past participle.

Make the past participle by adding 'ed' to regular verbs (for example, 'play' becomes 'played')

There are a few verbs that change their spelling when you add 'ed' (for example, 'study' becomes 'studied')

Answer 2

 1.They have swum in the river                Present Perfect

Please mark as brainlist