frozen gas
No such word.If you are looking for the simple past tense of swim, you want swam
The simple past tense of swim is "swam". The past participle of swim is "swum".
Swims is already plural. The singular is swim.
The correct usage of the word swim in past tense is swam. They swam in the pool yesterday.
A backstroker is a swimmer who swims backstroke.
will have swum
It must be used after some form of have. He/she/it (has) swum. We/You/they (have) swum. Or having, as in: Having swum the length of the pool....
swum as in I have swum the channel
will have swum is the verb phrase.
swum as in I have swum the channel
Swum is the past participle of the verb "swim".
"You have just swum" is correct. "Swam" is the past tense, while "swum" is the past participle form of the verb "swim."