Someone who remembers their school days better than I can, might be able to sort it out, via tense/mood/aspect/voice.
But my interest is much shallower. I just wonder if we burned the toast we would end up with burnt toast. If we learned a lesson it would be a learnt lesson. In other words, one implies a simple action, the other descriptive of the result, almost like an adjective. Just idle curiosity!Two tenses: present and past.
Four aspects: simple, progressive, perfect, perfect-progressive.
Three moods: indicative, subjunctive, imperative.
Two voices: active and passive.
What did interest me was this offering, composed by Adrienne Lovelock .
In this long life, some things I’ve learnt:
Praise and love cannot be earnt
By harsh words said and bridges burnt;
The way ahead can’t be discernt
Till roads are trod and corners turnt;
And helping hands should not be spurnt
But generosity returnt;
These are things that I have learnt.