-ing это
EN
[ɪŋ] [ɪn] [ən] [iːn] [iːŋ] T-ное
FR -ing 
- Суффикс (Suffix)SUF-ing
- Used to form gerunds, a type of verbal nouns, from verbs.
- the making of the film; the forging of the sword took several hours of planning, preparation, and metalwork
- Used to form uncountable nouns from various parts of speech denoting materials or systems of objects considered collectively.
- Roofing is a material that covers a roof.
- Piping is a system of pipes considered collectively.
- Used to form present participles of verbs.
- Rolling stones gather no moss.
- You are making a mess.
- Forming derivative nouns (originally masculine), with the sense ‘son of, belonging to’, as patronymics or diminutives. No longer productive in either sense.
- Browning, Channing, Ewing
- bunting
- shilling
- farthing
- Having a specifed quality, characteristic, or nature; of the kind of.
- sweeting
- whiting
- gelding
- Used to form gerunds, a type of verbal nouns, from verbs.
- Другие примеры
- Используется в середине предложения
- The purpose of the tramper is to pack the lint into the press box under the restraining dogs near the top end of the press box.
- Используется в середине предложения
Definition of -ing in English Dictionary
- Часть речи Иерархии (Part-of-Speech Hierarchy)
- Морфемы
- Суффиксы
- Флективных суффиксы
- Именные формирования суффиксов
- Флективных суффиксы
- Суффиксы
- Морфемы
- fr -ing
Источник: Викисловарь
Грамматически, это слово "-ing" является Морфемы, более конкретно, Суффиксы.