"shall roast" for the first person and "will roast" for the second and third persons. "Shall" and "will" interchange for emphasis.
roasted
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.
Roasted IS the past tense form of roast
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.
The past tense is rained. The future tense is will rain.