learned is already in the past tense.
The present would be "learn"
adding ed onto words usually makes the past tense.
example:
Last week we learned about dogs. (past)
In school we learn about math. (present)
I/you/we/they learn. He/she/it learns.
The present participle is learning.
The present perfect tense of "learn" is "have learned" or "has learned". For example, "I have learned a lot from this experience."
The tenses for the verb "learn" are present (learn/learns), past (learned/learnt), and future (will learn).
Have and has are both used in the present perfect tense:I/You/We/They have learned.He/She/It has learned.
learn / learns / learningI learn Esperanto.The doctor learns Esperanto.She is learning Esperanto too.
The verb is is the present tense.
The present perfect tense of "learn" is "have learned" or "has learned". For example, "I have learned a lot from this experience."
Learned is the past tense of learn.
The tenses for the verb "learn" are present (learn/learns), past (learned/learnt), and future (will learn).
Have and has are both used in the present perfect tense:I/You/We/They have learned.He/She/It has learned.
Learned is the past tense and past participle of learn. Present participles always end in -ing, so the the present participle of learn is learning.
learn / learns / learningI learn Esperanto.The doctor learns Esperanto.She is learning Esperanto too.
'is' is a present tense
The verb is is the present tense.
"Learned" is the more common spelling for the past tense and past participle of the verb "learn" in American English, while "learnt" is more common in British English. However, both are acceptable in either dialect. Use "learned" when writing in American English or prefer it for consistency.
Present perfect tense.
The present tense of "will be" is "am/is/are." For example, "I am," "he is," "they are."
The past tense of did is did. The present tense of did is do. The future tense of did is will do.