In English, there's loads of words which include the combinations of:

'ph' as in 'elephant', 'telephone' etc

'th' as in 'this', 'moth' etc

'sh' as in 'shop', 'fish' etc

plus other combinations of consonants with th letter 'h'

For native speakers, its easy to know how these are pronounced, but less easy for foreigners.

I've heard several of these mispronunciations, 'uffolstery', 'shithed'

more?