For Letters of Invitation

Will you give us the pleasure of your company to——

I am asking a few friends to——

It would be a pleasure to have you——

Will you join us in——

The pleasure of your company is requested to——

Hoping that your engagements will permit

In anticipation of seeing you next——

———— requests the presence of ————

———— requests the pleasure of your presence at——

I write at once to thank you, regretting most sincerely that——

I very much regret that I cannot accept your kind invitation to——

I regret that a previous engagement will prevent my acceptance of your very kind invitation to——

I very much regret that I cannot avail myself of the opportunity to——

I am grateful to you for your kind invitation, but——

I regret that I am unable to comply with your request because——

I regret extremely that——