put on weight

I put on weight.

私は太ります

I put on weight quickly.

私はすぐに太ります

I put on weight quickly because I move around less.

私は活動量が減るためすぐに太ります

I put on weight quickly because I eat a lot of sweet snacks and move around less.

私は甘い間食をよく食べて活動量が減るためすぐに太ります

I put on weight quickly because I eat a lot of sweet snacks at home and move around less.

私は家で甘い間食をよく食べて活動量が減るためすぐに太ります