| Suffix
| Meaning
| Example
|
| -ent (-ant)
| Used to form adjectives from the corresponding verbs
| -signify → significant
|
| -ence (-ance)
| Used to form abstract nouns from the corresponding verbs and adjectives
| -convenient → convenience
-perform → performance
|
| -er (-or)
| Used to form nouns with the meaning of a person or a thing from verbs
| -research → researcher
-investigate → investigator
|
| Prefix
| Meaning
| Example
|
| non-
| Added to adjectives and nouns to give the idea of “not having” or “not being”
| -effective → non-effective
|
1) Insert the missing words:
| Verb
| Adjective
| Abstract noun
|
| signify
| significant
| significance
|
| interfere
| −
| ?
|
| −
| ?
| evidence
|
| ?
| existent
| ?
|
| −
| ?
| absence
|
| depend
| ?
| ?
|
| −
| convenient
| ?
|
| differ
| ?
| ?
|
| ?
| ?
| insistence
|
| ?
| observant
| ?
|
2) By adding –er, form corresponding nouns from the following verbs:
work, teach, learn, observe, fill, contain, boil, transform, enlarge, convert, count.
3) By adding –or, form corresponding nouns from the following verbs:
conduct, inspect, direct, investigate, indicate, react, demonstrate.
4) Add non- to the following:
related, fiction, technical, neutral, cumulative, political, profit, operable, available, standardized, transferable.
