PLURALES IRREGULARES

irregular plurals
List of irregular plural:
There are also words that are the same in singular and plural, including sheep (lamb / sheep), deer (venison / deer), fish (fish / fish) and moose (elk / moose).
Besides these irregular plurals, there are other reasons that change phonetic writing to convert the singular plural. Are some nouns ending with sound of "F", the "F" is transformed into "V". Such is the case of:
knife (knife) knives.
wife (wife) wives.
wolf (wolf) wolves.
Finally, there are some false plurals, which have nothing to do with the singular of which seem to come:

Inglés		Español
Forma singular	Forma plural	Forma singular	Forma plural
man	men	hombre	hombres
woman	women	mujer	mujeres
child	children	niño (varon o mujer)	niños (de ambos sexos)
mouse	mice	ratón	ratones
fish	fish	pez	peces
tooth	teeth	diente	dientes
foot	feet	pie	pies
Sheep	Sheep	Oveja	Ovejas
Goose	Geese	Ganso	Gansos
Ox	Oxen	Buey	Bueyes
Louse	Lice	Piojo	Piojos
Die	Dice	Dado	Dados
Inglés		Español
Singular	Español	Plural falso	Español
good	bueno	goods	mercancías
custom	clientela, costumbre	customs	aduana