Interactive pronunciation book
Enter once with the email you registered, and every book in the series opens on this device.
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These are the symbols you will see in a dictionary. Click any one to hear it. You do not need to memorize them.
More word pairs depend on this contrast than on any other vowel distinction, and they are everyday words: live and leave, fit and feet, bit and beat, rich and reach, sit and seat.
It also produces the most awkward accidents in professional English, because several of the pairs are words you will use constantly.
If you fix one vowel in this book, fix this one.
If your language has one i sound, English gives you two and you will hear one.
This is worth understanding properly, because it explains why effort alone has not fixed it. You are not being careless when you say live for leave. Your ears are working correctly, using the categories your first language built, and both English words are arriving in the same category. Your mouth has nothing to aim at.
Most people default to the sheep vowel and use it for both, so ship comes out as sheep and bit comes out as beat. Some do the reverse.
You are not careless when you say live for leave. Your language has one i sound, so you hear one. That is why effort alone has not fixed it.
Sheep. Your tongue is high and forward, your muscles are tight, and your lips are slightly spread as if starting a smile. It is a tense vowel.
Ship. Your tongue drops slightly and pulls back a little, and everything relaxes. Your jaw is a fraction more open. It is a lax vowel.
The picture: sheep is a stretched rubber band. Ship is the same band let go.
The way in. Say sheep and hold it. Now, without stopping the sound, let all the tension out of your tongue and jaw. The vowel will drop into ship on its own. Go back and forth: sheeee, ih, sheeee, ih. You are not changing length. You are switching muscles on and off.
Say sheep and hold it. Without stopping the sound, let all the tension out of your tongue and jaw. It drops into ship. Sheep is a stretched rubber band; ship is the same band let go.

I play one word. Tap the one you heard. No speaking yet, just listening.
Play each pair deliberately and feel the one difference. This is where the sound stops being abstract.
Pick anything above, then record yourself saying it. Your recording appears in red over the model in gray. You are comparing shapes, not chasing a score.
Someone tells you the difference is that one is long and one is short. Why is that advice not enough?