Saying it in English:
1. Correct - She is Indian/She's Indian
She is = She's
2. Incorrect - She am Indian.
In simple present tense, 'Am' is used with only 'I', I is first person and singular.
For second person singular, 'you', we use 'are'. Note that even though 'you' can be used both for singular and plural (you - all), we always use only 'are' with it. 'Is' is never used with 'you'.
Coming to the 3rd person pronouns, in simple present tense, for singular 3rd person pronouns, 'He'/'She'/'It' - we use 'is'.
In simple present tense, for plural 3rd person pronoun, 'they' - we use 'are'.
Usage of 'Am'
Saying it in English:
1. Correct - I speak English
2. Incorrect - I am speak English
I am speak English - is incorrect English. In simple present tense, we do not need to add 'is/am/are' before the main verb (speak).
Usage of 'Are'
Saying it in English:
1. Correct - They are from America
2. Incorrect - They is from America.
'Are' is used with 2nd person (singular/ plural), and with 1st and 3rd person PLURAL nouns and pronouns. (We/They)
Correct usage: They speak English.
Incorrect usage: They are speak English.
In simple present tense, we do not add 'is/am/are' before the main verb.
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