In this task, you need to count the number of nouns/verbs in the given sentence.

Example Input: Sentence: 'A new refrigerator and a new washer and dryer'. Count the number of verbs in this sentence.
Example Output: 0

Example Input: Sentence: 'An old cracked brick building with a clock'. Count the number of verbs in this sentence.
Example Output: 1

Example Input: Sentence: 'A few birds flying and perched near a window sil'. Count the number of verbs in this sentence.
Example Output:
2