The underlined part in ‘a barking dog’ is a:

derivational suffix

derivational infix

bound base

inflectional suffix

derivational infix

bound base

inflectional suffix

derivational infix

bound base

inflectional suffix

derivational infix

bound base

joining two or more words together

joining two or more morphemes together

mixing two words into one

annexing prefixes to a base

adding suffixes to a base

adding affixes to a base

joining two or more words together

cutting off parts of two words

adding affixes to the stem

using the initials of a series of words

cutting off parts of two words

adding affixes to the stem

segment of language with meaning

a word to which an affix is attached

mono-morphemic word

morpheme occurring in the middle of a word

morpheme added after a stem

bound base at the beginning of a word

morpheme annexed before a stem

morpheme occurring in the middle of a word

morpheme added after a stem

derivational suffix

derivational infix

bound base

inflectional suffix

derivational infix

bound base

inflectional suffix

derivational infix

bound base

derivational suffix

derivational infix

bound base