Three singular nouns related to spring are: pollen, green, rain.
Yes, the word spring, summer, winter, and fall are nouns, singular, common, abstract nouns; a word for a season is a word for a thing.
Some singular nouns that end with 'tion' are:abbreviationabsolutionaccelerationactionaddictionaffectionafflictionagitationaggregationaviationobligationobservationoccupationoperationoptionorganizationornamentationosculationovationovulation
Examples of singular nouns ending in -io are:audioimpresariopatioPinocchiopistachiopolioportfolioradioratiotrio
Two kinds of nouns are common or proper, singular or plural.
"Has" is singular, e.g. He has, she has. "Have" is plural, e.g. They have, we have. The exception is "I" - e.g. I have.
Some nouns that are the same form for singular or plural:baggagebisonchamoisclothingequipmentfurnitureinformationluggagemooseroeshamanismsheep
Some singular nouns that end in Z are:adzbuzzditzfezfizzfrizzfuzzjazzquizRitzwhiz
Examples of nouns that are plural in form but singular in meaning:pajamaspoliticsnewsglassesbinocularsscissorspantsshortstrouserstongstweezersmathematicsspeciesclothescongratulationsmolassesmumpsphysicseconomicscivicsaerobaticsgymnasticsmeasles
Some singular nouns that are spelled with S as the last letter are:bossbrassbuschorusclasscrisiscrossdaisdressflossfussgasgrassiriskisslossmassmessmossonusoasispressstressstyluswalrus
Examples of singular nouns ending in 'ch' are:archbatchbeachbirchbleachcatchchurchclutchcouchcrutchditchDutchfinchgulchhitchhunchitchleechlunchmarchmatchnotchostrichperchpitchporchranchspeechwitchZurich
Some nouns associated with spring are:birdsblossomsfloodingnestsplantingrainshoppingsproutssweaters (not coats)tulips
Verbs cannot be singular or plural. Has is after singular nouns.