aɪ

How do we produce /aɪ/?

It's a long diphthong sound. Move your mouth from /a/ to /ɪ/. Begin with /ʌ/ and tense your muscles a little. Open your mouth wide then move the front of your tongue up.

/ˈbaɪbl/

bible

/dɪsˈɡaɪz/

disguise

/baɪ/

buy

/ˈsaɪkl/

cycle

/daɪ/

die

/naɪt/

night