¿Podría / podrían / podrías / podríais utilizar la chaira / el afilador / el sacapuntas?
barco is boat. you may be able to use that.
He invented the love shapener. Also a thing called a Plasters Hawk. pooping is natural
you could say "¿Puedo usar tu carro?"
In Spain. Here Castilian is a synonym of Spanish though some people may see "politic connotations" in the use of either name
in spanish the month may means mayo
In Spanish, this is "¿Puedo usar el cuarto de baño, maestro/a?"
The word 'femme' means 'wife, woman' in English. The word for 'woman' is mujer in Spanish. The word for 'wife' in Spanish also may be esposa. And sometimes there are Spanish speakers who use the word novia as girlfriend, fiancee, or wife.
If you mean the month of May, 'mayo', then no, it has no accent. There's no word for 'may' as in "May we go?" in Spanish.
It is not illegal to speak Spanish in a workplace. There may be requirements to use a specific language for some transaction, like air traffic control.
Maestro may be Spanish, but it may also be Portuguese or Italian.
'¿sabes dónde es 45?' is how you say "do you know where 45 is?" in Spanish. 45 may be written alternatively in full as 'forty-five' in English, and similarly in Spanish may be written as 'cuarenta y cinco'. In numerical terms, the number 45 is in the same 'position' on the 'number line' in Spanish as in English as the Spanish also use the same counting system.
In English, the word is concert. You may use it as synonym for show. But you may also use the word "concerto" (which is an Italian word) whenever you are referring to Classical Music.