Morphological analyser/Exercises

English plurals

Orthographic, not necessarily phonological

basic plurals

• book<n><pl> ↔ books, name<n><pl> ↔ names, computer<n><pl> ↔ computers, house<n><pl> ↔ houses, phone<n><pl> ↔ phones, bread<n><pl> ↔ breads, judge<n><pl> ↔ judges, toy<n><pl> ↔ toys, piano<n><pl> ↔ tags, proof<n><pl> ↔ proofs, chief<n><pl> ↔ chiefs
• f→v: wife<n><pl> ↔ wives, life<n><pl> ↔ lives

-es plurals

• watch<n><pl> ↔ watches, box<n><pl> ↔ boxes, waitress<n><pl> ↔ waitresses, tomato<n><pl> ↔ tomatoes, dish<n><pl> ↔ dishes, virus<n><pl> ↔ viruses
• y→i: baby, fly, berry
• doubled letter: quiz,
• f→v: leaf, wolf, half, loaf
• x→c: appendix,

irregular plurals

• -en: child, ox
• alternation: man, goose, mouse, tooth,
• null: deer, fish, sheep
• suppletive: person
• other: die
• is→es: thesis, analysis, crisis
• um→a: stratum, millenium
• us→i: syllabus, nucleus, alumnus
• a→ae: larva, alumna
• on→a: criterion, phenomenon