The verb 'be' is different from the other verbs in this tense. Let's look at 'be' first:

Here's the positive form (positive means a normal sentence, not a negative or a question. This is sometimes called 'affirmative')

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الفبای انگلیسی

Avoid negative sources, people, places, things & habbits

abroad /əˈbrɑːd/ (adv) in or to a foreign country SYN overseas

to be / live / go / travel abroad

1. She worked abroad for a year.

2. He was famous, both at home and abroad.

factor /ˈfæk.tər / (n) one of the several things that cause or influence sth:

environmental / economic factors ◊ the key / crucial / deciding factor