I catch cold now and then.

I catch cold 【now and then】.A. alwaysB. occasiona

I catch a cold 【now and then】 .A. alwaysB.occasio

I catch cold 【now and then】.A. alwaysB. occasiona

I catch a cold 【now and then】.A. alwaysB. occasio

I catch a cold 【now and then】.A. alwaysB. occasio

I catch cold【 now and then】.A.always B.occasional