Homework activity

Look at the following words:

a. What prefix is added to the verb to make it a noun?
b. Are there any changes is sound / spelling?
c. What are the allomorphs?

d.  Can you write a rule for when we use each allomorph

Group 1

Group 2

Group 3

Opt --> option

Obsess --> obsession

Invade --> invasion

Act --> action

Express --> expression

Persuade --> persuasion

Delineate --> delineation

Discuss --> discussion

Erode --> erosion

Sedate --> sedation

    

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