The present perfect tense of burst is:
the present tense of burst is bursting.
The present tense of the word "burst" is "bursts."
The present perfect tense is Have/Has Hidden.
The present perfect tense is has/have existed.
Was is a past tense conjugation of be. The present perfect tense of be is have/has been.I/We/You/They have beenHe/She/It has been
the present tense of burst is bursting.
The present tense of burst is burst.
The present tense of the word "burst" is "bursts."
burst
In the given text, "have ... died" is in the present perfect tense; "are ballooning" is in the present progressive tense; and "burst" is in the simple present tense.
Present tense
The present perfect tense is Have/Has Hidden.
The present perfect tense is has/have existed.
present tense past tense future tense present perfect tense past perfect tense future perfect tense present progressive tense past progressive tense future progressive tense present perfect progressive tense past perfect progressive tense future perfect progressive tense
Was is a past tense conjugation of be. The present perfect tense of be is have/has been.I/We/You/They have beenHe/She/It has been
The present perfect tense of "are" is "have been."
I already answered it once: In the given text, "have ... died" is in the present perfect tense; "are ballooning" is in the present progressive tense; and "burst" is in the simple present tense.