Using have in a sentence

[Chamara Janaka]

""Is has been a while after I have returned home from Australia.""

In the sentence above, is it correct to use have? if no, why is it wrong?

 

[bhaisahab]

""Is has been a while after I have returned home from Australia.""

In the sentence above, is it correct to use have? if no, why is it wrong?

The sentence is incorrect with or without "have". Try "It has been a while since I returned from Australia".

 

[Chamara Janaka]

Thank you for the reply.I have made a mistake. It should start with "It" not "Is", presuming it's "It" what's the reason for the sentence to be wrong with "have"?

 

[Rover_KE]

The whole sentence is ungrammatical.