Прогнать предложение "i swim in summer" по временам: present simple; past simple; future simple; present continuous; past continuous; present perfect; past perfect; , нужно.
I swim in summer - Present Simple I swam in summer - Past Simple I wil swim in summer - Future Simple I am swimming in summer - Present Continuous I was swimming in summer - Past Continuous I have swum in summer - Present Perfect I had swum in summer - Past Perfect
I swam in summer - Past Simple
I wil swim in summer - Future Simple
I am swimming in summer - Present Continuous
I was swimming in summer - Past Continuous
I have swum in summer - Present Perfect
I had swum in summer - Past Perfect