Grammar / B1+ Grammar lessons and exercises / When I do vs When I have done: Future time clauses
Fill in the gaps using the verb in brackets in either the present simple or present perfect tense. Use the PRESENT PERFECT when the action must be completed before the main event. Otherwise, use the PRESENT SIMPLE.
When I my coffee, I'll put the mug in the dishwasher. (drink)
When I Mary tomorrow, I'll take her some flowers. (visit)
The bell on the oven will ping as soon as the pizzas ready. (be)
Once all the guests , I'll clear the table. (eat)
I will make him an offer when I him later. (see)
When the garbage men the rubbish, the bins will be empty. (collect)
When Sara the dishes, she'll wear rubber gloves. (do)
While the cakes in the oven, I'll prepare the icing. (be)
Simon will study the second unit once he the first. (complete)
When I my new colleague, I'll shake his hand. (meet)