I/we/you/they have practiced.
He/she/it has practiced.
Cleopatra or any other Egyptian ruler held the crook and flail which were symbols of their authority.
The very earliest you can ovulate is on the 7th day of your cycle.
The simple present tense is a present tense used to talk about:
1. repeated actions (habits)
2. general truths (facts)
3. talk about people or things in general, not now
I like milk.
She doesn't study hard.
The sun rises in the east.
We always go to the club on Mondays.
The adverb is ahead, and modifies the infinitive "to plan."
To help you find the adverb, remember that an adverb tells how, when, where or to what degree an action is done. Think what is the action being done in this sentence - what are you being asked to do here? Then ask how, when, where is the action supposed to be done.