Help with Celta assignment please.

[Davekelly]

I need help with the following;

I met him two years ago after he`d left the company.
Can you help me analyse the form and function /meaning in this sentence?
Thanks

[Mister Micawber]

Hello, Dave-- and welcome to English-test.

For which words do you not understand the meaning or function? There are no idioms in the sentence.
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Native English teacher at Mister Micawber's

[Joseph_Learns_To_Speak]

I guess he could ask to know the usage of simple past and past perfect tenses in the sentence, Mr. Micawber.
JLTS
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Learning English is just for good

[Mister Micawber]

We will let the poster decide that, Joseph.
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Native English teacher at Mister Micawber's