This tense is called "Progressive Present", obtained by combining the present tense form of "to be" and the present participle of the principal verb.
No, began is past tense.
Coming
Come/Comes/Coming.
"will have been coming" is the future perfect continuous tense of come.
The simple past tense is came. The present participle is coming.
There is no past tense of 'over'. If you said "I am coming over" or "I came over", you use the same word.
come, comes or be + comingThey come to school early.She comes to school late.I am coming home now.We are coming home now
Is and coming are the verbs in this sentence.'is' is a present tense be verb.'coming' is the continuous for of come.You could say is coming is the verb.
The present tense of come is:I/You/We/They come.He/She/It comes.The present participle is coming.
Came is the past tense of come.Future tenses for come are:will come -- I will come and see you tomorrowam/is/are going to come -- She is going to come home next week.am/is/are/ coming -- I am coming home soon.
I/you/we/they come. He/she/it comes. The present participle is coming.
"Say/Says" is the present tense. "Saying" is the gerund or present progressive tense.