if it Rains we not go to the open air concert vs if it Rain we not go to the open air concert

Some examples from the web:

• And if it rains we'll go to town or to the cinema.
• But then I remembered Tom talking to the open air and I tried it.
• Where sanitary facilities are provided, they shall be fitted with ventilation to the open air, independent of any other part of the accommodation.
• He's around, and am not going to expose this batch to the open air and contamination.
• Don't worry, if it rains we'll just do photos indoors at Parkside.
• The air escaping from relief valves in the compressed-air tanks installed in engine rooms shall be conveyed to the open air.
• In addition, the conditions in winter are such that they can be kept exposed to the open air, which used to be the only form of storage.
• 'Gas-tight housing' means a device to protect the accessories and to vent any leakages to the open air.
• Go to the Open House and express your options.
• You go to the open mike night.
• have ventilation pipes which lead to the open air or are fitted with appropriate filters.
• ensuring that the animals present on the farm have access to the open air;
• Why can we not go to the sleepover?
• I can go to the open sea to get them. I'd rather have yours.
• At least let's go to the open house tomorrow and check it out.
• If it rains tomorrow, I won't go to the picnic.
• Can we not go to Vietnam today?
• And why can't we not go to the Louvre?
• in particular through regular exercise and access to the open air and to pasture whenever weather conditions and the state of the ground allow this
• If you were to go to the open data portal, you'd see just a snippet of it, a year or a few months.

Some examples from the web:

• And if it rains we'll go to town or to the cinema.
• But then I remembered Tom talking to the open air and I tried it.
• Where sanitary facilities are provided, they shall be fitted with ventilation to the open air, independent of any other part of the accommodation.
• He's around, and am not going to expose this batch to the open air and contamination.
• Don't worry, if it rains we'll just do photos indoors at Parkside.
• The air escaping from relief valves in the compressed-air tanks installed in engine rooms shall be conveyed to the open air.
• In addition, the conditions in winter are such that they can be kept exposed to the open air, which used to be the only form of storage.
• 'Gas-tight housing' means a device to protect the accessories and to vent any leakages to the open air.
• Go to the Open House and express your options.
• You go to the open mike night.
• have ventilation pipes which lead to the open air or are fitted with appropriate filters.
• ensuring that the animals present on the farm have access to the open air;
• Why can we not go to the sleepover?
• I can go to the open sea to get them. I'd rather have yours.
• At least let's go to the open house tomorrow and check it out.
• If it rains tomorrow, I won't go to the picnic.
• Can we not go to Vietnam today?
• And why can't we not go to the Louvre?
• in particular through regular exercise and access to the open air and to pasture whenever weather conditions and the state of the ground allow this
• If you were to go to the open data portal, you'd see just a snippet of it, a year or a few months.