simple past of irregular verbs

[oli]

English Language Tests, Intermediate level

ESL/EFL Test #100 "Student Teacher Dialogue (3)", question 7

Teacher: Well if you started living in Paris in 1999 and you are still there, you say; I have been living there ......... 1999.

(a) since
(b) for
(c) till
(d) until

English Language Tests, Intermediate level

ESL/EFL Test #100 "Student Teacher Dialogue (3)", answer 7

Teacher: Well if you started living in Paris in 1999 and you are still there, you say; I have been living there since 1999.

Correct answer: (a) since
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when i have the verb in the past . i must reat ed?

[Mister Micawber]

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Usually, yes. Irregular verbs have different endings: beaten, came, arose.
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Native English teacher at Mister Micawber's