Yes. For example:
"Money will be needed in years to come to keep our services going."
Needed is the past tense of need. The future tense of need is will need.
That is in future tense...
There isn't one word for the future tense of enclosed, there is more than one word needed to state the future tense of enclosed. ex. it will be enclosed, i will enclose it
Yes, going to go, (future tense) but "to" is only needed one time.
Past - there is nothing like that to use grammatically, but the natural replacement is 'Was'. Future - will be.
Future tense.
Yes. For example, "They have in their possession..." can be changed from present tense to future tense by changing it to "They will have in their possession..."
Past tense - calculated. Present tense - I/you/we/they calculate. He/she/it calculates. Future tense - will calculate.
No. The word "are" is present or future tense. The past tense would be "were".
The spelling will stay the same as present tense. The use of "will" in front as an adverb determines the future tense (e.g. ' I will assign seats tomorrow. ' ).
It also use the auxiliary verb "will".The future perfect tense follows this structure:Subject + Will + Have + Past Participle.e.g. I will have danced.
No, -ed is used for the past tense.