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Both are correct depending on the situation
did not decide -- this is past simple negative and is used to talk about something in the past that is finished now.
You did not decide what was right and you missed out.
Have not decided -- this is present perfect negative and is used to talk about something that happened in the past that has a present result.
You have not decided what is right and now you miss out.
What else can I help you with?
How did congress decide to pay some soldiers of the revolutionary war?
The congress decided to pay some of them with land
Why did Virginia finally decide to secede from the Union?
They decided to because Lincoln called forso many Virginians to fight.
How do you use the word decision in past tense?
Decision is a noun. The verb form is decide, and the past tense is decided.
Why did turner decide Sunday was the best day to begin the rebellion?
the reasone why he decided to led the rebillion that day was because most slave owners were at church
Why did the us decide to enter the war?
the us decided to enter world war because they want the resources of France, and they want to keep on ruling france.
What is the correct past participle of the word decide?
Decide is a regular verb so you add - ed to make the past and the past participle.decide / decided / decided
Which is right decide to joined or decided to join?
The correct term is decided to join.
What is the past tense of decided?
The infinitive would be "to decide", the present tense would be "decide(s)", and the past tense IS "decided". The word decided is the past tense. The present and future tense are (PRESENT) decides or decide and (FUTURE) will decide.
What is the present perfect tense of decide?
The present perfect tense of decide is:I/You/We/They have decided.He/She/It has decided.
What is the past participle of decide?
Had decided is the past participle.
How do you spell desides?
The correct spelling is decided (made a decision, settled).
What is the past participle decide?
Had decided is the past participle.
How do you spell dicied?
This is likely one of these : DECIDED - made a decision DECEASED - dead DISSECTED - cut into sections or parts
What is the verb of decide?
Decide is a verb. past = decided
What is the future perfect of decide?
the future perfect of "decide" is "have decided".
What the past tense of decide?
The past tense of decide is decided.
What is the present tense of decided?
I/You/We/They decide. He/She/It decides. The present participle is deciding.
