We (work) as teachers for two years.
have worked (Present Perfect)
The children were doing their homework when I got home.
were doing (Past Continuous)
My wife (drink) coffee every morning.
drinks (Present Simple)
We (travel) to Chicago in 2018.
traveled (Past Simple)
He couldn't make a sandwich because he (forget) to buy bread.
had forgotten (Past Perfect)
Listen! The dog (bark) loudly.
is barking (Present Continuous)