The plural form is tablespoonfuls.
Note that tablespoonful is spelled without an 's' between 'spoon' and 'ful'.
That IS the plural - the singular is tablespoonful.
Tablespoons is already the plural for the singular tablespoon.
Singular ; this and that Plural ; these and those
The plural of 'bunch' is bunches.The plural of 'ant' is ants.The plural of 'batch' is batches.The plural of 'day' is days.The plural of 'chimney' is chimneys.The plural of 'tomato' is tomatoes.The plural of 'umbrella' is umbrellas.The plural of 'donkey' is donkeys.The plural of 'sky' is skies.The plural of 'foot' is feet.The plural of 'show' is shows.
The plural of rose is roses. The plural possessive is roses'.
The plural for the noun loss is losses; the plural possessive is losses'.
pluralsThe word plurals is the plural of plural. As in: I answered the question about plurals to the person who didn't know that the plural of plural is plurals.
applied is does not have a plural but is apply it does have a plural.
The plural is a regular plural, attics.
pluralsThe word plurals is the plural of plural. As in: I answered the question about plurals to the person who didn't know that the plural of plural is plurals.
Singular ' He/She is Plural 'They are NB Notice they change of verb. NNB 'They is' is NOT correct English.
plural verb - were plural subject - boys The boys were hungry