Question

they learn the lessons attentively change into past continuous, present continuous, future continuous​

Answer 1

answer

past continuous - they were learning the lesson attentively

present continuous - they are learning the lesson attentively

future continuous - they will be learning the lesson attentively

Answer 2

past continuous = they were learning the lessons attentively.

present continuous = they are learning the lessons attentively.

future continuous = they will be learning the lessons attentively.