by using:
be,verbs with ing,to,...
Future tense.
A prediction that you will be rather nervous in the near future.
The phrase shall have is a future tense; it is a prediction about what you are going to have in the future. Possibly the very near future ("I shall have a coffee and a donut").
Were is a past tense form of be. The future tense of be is will be.
Do NOT use 'get/got' in English grammar, particularly in the written form. They are 'catch-all verbs'. The English vocabulary has a verb for every active situation. YES!!! The word is said a lot in the spoken language. Here is an example I went to the shops to get some clothes . Ugh!!!!! I went to the shops to purchase/buy some clothes. Much better. The Americans use the word 'fix' in a similar way. A waitress may say, What can I fix you' Ugh!!!!! 'What can I bring for you .' Much better.
Am, is, and are are present tense forms of be. The past tense forms of be are was and were. The future tense of be is will be.
The future tense is will carry.
The future tense of "was" is "will be."
The future tense of "seek" is "will seek." The future tense of "bring" is "will bring."
The future tense is will break.
"Which" is present tense and "will break" is future tense.
Past tense - went. Future tense - will go.