Present Past Future Present Perfect Past Perfect Future perfect Present Progressive Past Progressive Future Progressive Present Perfect Progressive Past Perfect Progressive Future Perfect Progressive Past Emphatic Present Emphatic Conditional
Have/Has Shown.
She is not a verb so it doesn't show tense.When she is the subject of a sentence the present perfect is has + past participle.She has eaten the cake.
I have not spoken. Present perfect is formed with have / has + past participle. ie have spoken, has spoken. Not is not a verb it is an adverb used to show negative.
The present continuous tense is used to show something that happen in the past and continued up until to the present now.
The present perfect tense is used to show that an action happened at an unspecified time before now, while the simple past tense is used to show that an action happened at a specific time in the past.
The present perfect of follow is has/have followed.
The present perfect form of "present" is "have/has presented."
The present perfect tense is Have/Has Hidden.
The present perfect tense is has/have existed.
The present perfect tense of "are" is "have been."
The present perfect is 'I have sung'