Question

class 10 error correction when they spots a tigger
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Answer 1

Answer:

what is the question?

Explanation:

Answer 2

The given sentence should be written correctly as shown and explained below:

When they spot a tiger.

Explanation

The verb form in the sentence is in Simple Present Tense. In this tense when the subject is they, we use first form of the verb without 's/es' attached to the verb.

Simple Present Tense Explanation

In Simple Present Tense, we use base form of a verb. When the subject is singular, we add -s/es with the base form of the verb (V1+s/es).

In questions, negatives, and negative questions we use auxiliary do/does+v1 with ‘not’.

We use the present simple for  

•states, things staying the same, facts and things that are true for a long time: We live quite near

• repeated actions: We come here every week.