Sailed is already the past tense form of 'sail'.
The verb is sailed, and the tense is past tense. The subject is steamer, sailed is what the steamer did, and "yesterday" confirms that it took place in the past.
The past tense of sail is sailed.
have in past tense is had
The past tense of have is had.
Sailed is a verb. It is the past tense of the verb sail.
All three words, 'Spell past tense' are correctly spelled.
The past tense of sail is sailed.
You spell the past tense of settle like this: Settled
The past tense is benefited.
The past tense is coasted.
The past tense is traveled.
The past tense is roped.