The students learned many poems by heart. ✬

The students learned this poem by heart. ✬

We all learned the poem by heart. ✬

It took me an hour to learn the poem by heart. ✬

Have you learned the poem by heart? ✬

Learn these names by heart. ✬

The teacher said we had to learn all these expressions by heart. ✬

Let's learn this poem by heart. ✬

I must learn this poem by heart. ✬

Everyone in the class has to learn the poem by heart. ✬