have / has saved
They have saved money all their lives.
She has saved very little money.
I/you/we/they have saved. He/she/it has saved.
Past perfect tense - I had saved. Present perfect tense - I have saved.
The present perfect singular of the verb "to place" is "I have placed".
The present perfect tense of the verb "study" is "have studied."
The present perfect form of the verb 'sit' is 'have sat.'
"Have studied" is in the present perfect tense. It is formed by using the auxiliary verb "have" followed by the past participle of the main verb.
The present perfect tense of the verb "study" is "have studied."
The present perfect tense of the verb "practice" is "have practiced" or "has practiced."
It is an adverb, not a verb,; it can accompany a Present, a Past, a Present Perfect, a Past Perfect and a Future verb.
The present perfect of visit is have/has visited.
"They have" is the subject and auxiliary verb parts of the present perfect tense. Following these should be a past participle of a verb to complete the tense.
For make sentences in present perfect we just need the verb ''to have (HAS)" + the past participle of the verb. eg:. have or has + frightened.