Turning nouns and adjectives into verbs using the suffixes -ify and -ise | Exit Quiz | Oak National Academy

Match the verbs to the rule that is used when the suffix -ify is added to the root word.

• objectify

• Remove the 'y', then add the suffix.

• specify

• Just add the suffix.

• simplify

• No obvious root word.

• beautify

• Remove the final vowel, then add the suffix.

Answer explanation

There are different rules for how the root word changes when the suffix -ify is added and some words ending in -ify don't have an obvous root word at all.

Choose the spelling of the word in bold in the sentence. Many campers will puriffigh water before drinking it to ensure it is clean.

• pureify

• purify

• puriffy

Answer explanation

The correct spelling is 'purify'. The final vowel 'e' is removed from 'pure' before the suffix -ify is added. The adjective 'pure' becomes the verb 'purify'.

Correct the spelling of the word in bold in the sentence. I must apolagize because I was rude.

• apolagise

• apologise

• apoligise

• apologize

Answer explanation

The correct spelling is 'apologise'. The final 'y' is removed from 'apology' before the suffix -ise is added, creating the verb 'apologise'.

Correct the spelling of the word in bold in the sentence. I could really simpathize with her as I have often felt the same.

Answer explanation

The correct spelling is 'sympathise'. The final 'y' is removed from 'sympathy' before the suffix -ise is added.

Correct the spelling of the word in bold in the sentence. Many doctors speshalize in a particular area of medicine.

Answer explanation

When the root word ends in a consonant, we often just add the suffix. 'Special' becomes 'specialise'.

Correct the spelling of the word in bold in the sentence. Can you simpleiffy this equation?

Answer explanation

When the root word ends in a vowel, we remove the final vowel and add the suffix. 'Simple' becomes 'simplify'.