• herfordshire,
• hertfordshire,
• herefordshyre,
• herifordshire,
• herifordshyre,
• herefordsheire,
• herefodshire

• Bedfordshire,
• gloucestershire,
• berkshire,
• Shropshire,
• worcestershire,
• cambridgeshire,
• hertfordshire,
• nottinghamshire,
• oxfordshire,
• Staffordshire.

The adjective form of the word "Herefordshire" is "Herefordshirean".

The plural form of "Herefordshire" is "Herefordshires".

The singular form of the word "Herefordshire" remains the same, as it is already a singular proper noun representing a county in England.