The past tense of respond is responded.
The past participle is responded.
Yes, responded is the past tense of respond.
yes
I will only respond in the present tense.
No, respond means in the present, now or in the future; responded means in the past, previously: I have that information and can respond to the inquiry. I will respond to your inquiry as soon as I can. I responded to the inquiry last week.
Only verbs have tenses. "Responsible" is an adjective.
Believe it or not, for the past 6 years, Iraq have the PERFECT society.
Eons members were a threat to Facebook so it was eliminated.
Eons members were a threat to Facebook so it was eliminated.
If you are asked 'How was your day?' then you would respond in past tense.
Honor Society has had many live chats in the past.