Boat is mostly used as a noun.
When used as a verb (meaning to travel by boat) the past tense is boated.
It is already in past tense, because it has the word built, which is in past tense. In present tense, it's, "You are building the boat very quickly."
The past tense of hurt is hurt - as in - the sailors were hurt when their boat capsized - or - that hurt do not do it again.
Plugged. Our boat had a hole, so we plugged it.
"Boated" is the past tense or past participle form of the verb "boat", meaning to travel within a craft that floats on water.
Yes, it is the past tense of the verb sink. My boat may sink today, because my boat sunk yesterday. I need a new boat.
The simple past for "sink" is "sank."Ex. The boat sank.However, the past participle (and thus the form used in the more complex forms of the past tense) is "sunk."Ex. The boat had sunk ten years ago. The boat will have sunk by the time you read this. The boat wouldn't have sunk if it hadn't had a hole in it. I have finally sunk the boat.A full list of all forms can be found here: http://www.vocabulix.com/conjugation2/sink.html
Disembarked means you got of a boat or aircraft. A past tense.Disembark means you are currently leaving the boat or aircraft. Present tense.
the past tense of am is was and the past tense of has is had
Past tense of crew is crewed.
The past tense of get is got. For isn't a verb and so doesn't have a past tense. The past tense of has is had. Had is already the past tense. The past tense of have is had.
Past perfect is - had + past participle and the past participle of cling is clung.A past perfect sentence using clung:I had clung to the boat for two hours
The past tense of shrink is shrank; e.g. "The inflatable boat shrank quickly when it was punctured."It is not "shrunk".The present perfect tense is "shrunk"; e.g. "The number of people living in our house has shrunk since the triplets moved out."