Present Simple:

always, usually, often, sometimesevery day/week/month/yearon Mondays, in the morning, at night

Present Continuous:

now, at the moment, at presentcurrently, these dayslook, listen, feel, taste, smell, appear

Future Simple:

tomorrow, next week/month/yearin the future, soon, laterwill, going to

Past Simple:

yesterday, last week/month/yearago, the other dayirregular verbs: ate, drank, went, slept, bought

Present Perfect:

already, yet, justnever, ever, beforehave/has + past participle

Hope this helps! Let me know if you need more examples or explanations.