Příspěvek od DesperateDan vložený před 3 lety

… have never gone jogging/running if/when it was… 

DM has hit the nail on the head here. The problem here is that the two verb forms “have been/gone VERBing” (= present perfect continuous/pro­gressive) and " when it was…" (= past simple) apply to different timeframes – present and past. You need to decide whether you want to talk about the present (if/when it is less than 13°C) or the past (if/when it was less than 13°C).

Present: You can say either 1 or 2, the meaning is the same:

• 1. I've never been/gone jogging/running if/when it is less than 13°C.
• 2. I've never been/gone jogging/running if/when it has been less than 13°C.

Past: You can say either 3, 4 or 5, the meaning is the same:

• 3. I never went jogging/running if/when it was less than 13°C.
• 4. I never used to go jogging/running if/when it was less than 13°C.
• 5. I would never go jogging/running if/when it was less than 13°C (would = opakovaný děj v minulosti)

Jak píše eva, raději používáme never been running , ale never gone running je přijatelné.

Hey everyone, so basically I want to start running. I've never been a runner, and have never gone running in my life …(myfitnesspal)

… never been running is ok above too.

If you’ve never been running before it can feel a little daunting, so it’s best for you to start slowly and gradually build up your speed and distance as you get more comfortable. (nationalworld)

… never gone running is ok above too.

Ano, v přítomném čase je správně

• I never run/jog if/when it's less than 13°C
• I never go running/jogging if/when it's less than 13°C
• I never go for a run/jog when it's less than 13°C

We don't need “outside” (though it's obviously not wrong), and “under” is also ok for “less than”, see the Ngram.

Příspěvek od DesperateDan vložený před 3 lety

… have never gone jogging/running if/when it was… 

DM has hit the nail on the head here. The problem here is that the two verb forms “have been/gone VERBing” (= present perfect continuous/pro­gressive) and " when it was…" (= past simple) apply to different timeframes – present and past. You need to decide whether you want to talk about the present (if/when it is less than 13°C) or the past (if/when it was less than 13°C).

Present: You can say either 1 or 2, the meaning is the same:

• 1. I've never been/gone jogging/running if/when it is less than 13°C.
• 2. I've never been/gone jogging/running if/when it has been less than 13°C.

Past: You can say either 3, 4 or 5, the meaning is the same:

• 3. I never went jogging/running if/when it was less than 13°C.
• 4. I never used to go jogging/running if/when it was less than 13°C.
• 5. I would never go jogging/running if/when it was less than 13°C (would = opakovaný děj v minulosti)

Jak píše eva, raději používáme never been running , ale never gone running je přijatelné.

Hey everyone, so basically I want to start running. I've never been a runner, and have never gone running in my life …(myfitnesspal)

… never been running is ok above too.

If you’ve never been running before it can feel a little daunting, so it’s best for you to start slowly and gradually build up your speed and distance as you get more comfortable. (nationalworld)

… never gone running is ok above too.

Ano, v přítomném čase je správně

• I never run/jog if/when it's less than 13°C
• I never go running/jogging if/when it's less than 13°C
• I never go for a run/jog when it's less than 13°C

We don't need “outside” (though it's obviously not wrong), and “under” is also ok for “less than”, see the Ngram.