A and THE - train(s) bus(es) (singular and plural)

Question 1

• The plural of a noun is usually -s:
  singular (= one) → plural (= two or more)
• -s / -sh / -ch / -x→ -es
• -y→ -ies
• -ay / -ey / -oy → -ys
• -f / -fe → -ves

Answer 1

...a flower       → some flowers
...a train          → two trains
...one week    → a few weeks
...a nice place → some nice places
...this student → these students
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
...bus      →buses
...dish     →dishes
...church →churches
...box      →boxes

also
...potato→potatoes
...tomato→tomatoes
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
...baby → babies
...dictionary → dictionaries
...party → parties
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
...day → days
...monkey → monkeys
...boy → boys
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
...shelf → shelves
...knife → knives
...wife → wives

Question 2

• These things are plural:
  scissors, glasses, trousers, jeans, shorts, tights, pyjamas
• You can also say a pair of scissors / a pair of trousers / a pair of pyjamas etc. :

Answer 2

…I need a new pair of jeans. or I need some new jeans.

Question 3

• Some plurals do not end in -s:
• Also, a person → two people / some people / a lot of people etc. :
• People is plural (= they), so we say people are / people have etc. :
• Police is plural:

Answer 3

...this mAn → these mEn
...one foot → two feet
...that sheep → those sheep
...a womAn → some womEn
...a tooth → all my teeth
...a fish → a lot of fish
...a child → many children
...a mouse → some mice
\_\_\_\_\_\_\_\_\_
...She’s a nice person
    * but They are nice people.  (NOT nice persons)
\_\_\_\_\_\_\_\_\_
...A lot of people speak English. (NOT speaks)
...I like the people here. They are very friendly. 
\_\_\_\_\_\_\_\_\_
...The police want to talk to anybody who saw the accident. (NOT The police wants)