The possessive form of the singular noun coach is coach's.
example: I could hear the coach's voice over the noise of the crowd.
The noun coach is the singular form. The plural form is coaches.
Yes, the noun coach is a singular noun. The plural form is coaches.
The possessive form of the plural noun coaches is coaches'.The apostrophe at the end of the word indicates that something belongs to two or more coaches.Example: You'll find the coaches' offices at the end of the corridor.
The possessive form of the singular noun competition is competition's.Example: The competition's schedule is posted by the coach's office.
The possessive form of the singular noun "coach" is coach's (sounds the same as the plural coaches). The plural possessive is coaches' (also sounds exactly the same).
The singular form of the demonstrative pronoun 'these' is this.
The singular form of "cuffs" is cuff.
The singular form of "stratum" is "stratum." The word does not change in its singular form.
The singular form of feet is foot.
The singular form of scissors is "scissor."
The singular form of diagnoses is diagnosis.
The singular form of "wash" is "washing."