I have swum.
The present perfect tense of the word ask is "have asked."
Has is the present tense, third person singular conjugation of have.
She, he, it, has cared. We, they,you.I have cared.
going <Supv. note: this is the present progressive or the gerund.> Present perfect is "have/has + gone"
The present perfect tense with past participle for the word "lie" is "have lied."
The word 'lough' is a noun and so doesn't have a present perfect tense.
it could work in future perfect and in present perfect Example : Present Perfect : I have played football in the backyard . Future Perfect : I will have played football in the backyard .
building
"Has seen" is the present perfect tense.
It is an adverb, not a verb,; it can accompany a Present, a Past, a Present Perfect, a Past Perfect and a Future verb.
practiced
tended