The Present Perfect tense.
The future tense is will check.
The future tense is will check.
The future tense of the word "check" is "will check."
The past tense of "check" is simply "checked."
The past participle tense of "check" is "checked."
The present tense of "check" can vary depending on its intended usage. As a verb, it would be "check" (e.g., I check my email every morning). As a noun, it remains "check" (e.g., I wrote a check for the groceries).
Early doesn't have a past tense. It's not a verb.
spelt arrive :P arrived, was/were arriving,
The future tense form of "check" is "will check." For example, you can say, "I will check the results tomorrow." This construction indicates an action that will happen at a later time.
worked
I would say it's one of those words where you put a 'will' before it - like will be, will run etc.
Checked.