past
Happened is the past tense of happen.
The past tense of happen is happened.
The past tense of happened is happen.
anything ending ED is usualy past tense think Happen-ed = happened in the past (tense) Happen-ing = Happening Now (present tense) Happen = Will Happen (although look for clues from contextual surroundings) so happen alone could be also past tense it "did happen" Present tense "Happen I have changed my mid" Future "It is bound to happen"
The past future tense of "happen" is "would happen." For example, "He said the event would happen next week."
The tense of "will go" is in the future tense, meaning that it will happen in the future
"IT is happen" does not mean anything; "it is happening" is a Present Tense - a Continuous Present Tense, to be more specific (not a "word").
The future tense is 'will happen'
The tense of "will talk" is future simple tense. It is used to indicate an action that will happen in the future.
The past tense.
Future tense.
"Will blend" is in the future tense. It refers to an action that will happen at some point in the future.