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Examples My son is a really goo d b oy. I’m sorry if I was ru de b efore. My car had to be towe d b ack to the garage. You shoul d b uy him a present.
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How to form the plural We form the plural by adding -s to the singular of the noun.
1.2. Nouns ending in sibilants Add -es . Add -s if the noun ends in one -e .
1.3. Nouns ending in -y 1.3.1. y after consonant Change -y to -i , then add -es .
There are two forms of the plural of the word penny:
pennies → You refer to the single coins. pence →You refer to the price (how much sth. is). 1.3.2. y after vowel Add -s after a vowel.
1.4. Nouns ending in -f or -fe 1.4.1. Add -s 1.4.2. Substitute with -ves
1.5. Nouns ending in -o 1.5.1. Add -s 1.5.2. Add -es Both forms are possible with the following nous:
buffalo → buffalos/buffaloes mosquito → mosquitos/mosquitoes tornado → tornados/tornadoes 2. Irregular Plural Forms
https://www.englisch-hilfen.de/en/exercises/structures/prepositions_at_in_on_time.htm
https://agendaweb.org/exercises/grammar/prepositions/time-2