[verb ます-stem] + つつ [verb ます-stem] + つつも
The particle つつ is a literary/formal conjunction that attaches to the verb stem (ます-form without ます) to express two main meanings: simultaneous actions and contradiction/concession.
つつ can express two actions happening at the same time, similar to 〜~ながら but more formal and literary. It is commonly found in written Japanese, speeches, and formal contexts.
In this usage, the main action is in the second clause, and the つつ clause describes a simultaneous or accompanying action.
When followed by も (forming つつも), it expresses that the speaker does something despite knowing or feeling the opposite – often highlighting a contradiction between what one knows/feels and what one actually does. Even without も, this concessive meaning can appear from context.
This concessive usage often pairs with verbs like しる知る, おもう思う, わかる分かる, and かんじる感じる – verbs describing awareness or inner states – to create a sense of guilt, irony, or self-contradiction.
V[stem] + つつ (simultaneous) V[stem] + つつも (concessive)