

The cat is under the bed.
[ðə ˈkæt ˈɪz ˈəndər ðə ˈbɛd.]
Is my phone under the sofa?
[ˈɪz ˈmaɪ ˈfoʊn ˈəndər ðə ˈsoʊfə?]
Don't put your bag under the table.
[ˈdoʊnt ˈpʊt jər ˈbæɡ ˈəndər ðə ˈteɪbəl.]
"under" is in the lesson "Adverbs 1" (Level 23), along with 15 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.