The document discusses the present perfect tense in English. It provides the forms of the present perfect, examples of its usage including experience, accomplishments, and change over time. It also notes that the present perfect is used for actions that started in the past and continue in the present, or actions that occurred at an indefinite time in the past. Examples and a short quiz are provided.
Design of A Spell Corrector For Hausa LanguageWaqas Tariq
In this article, a spell corrector has been designed for the Hausa language which is the second most spoken language in Africa and do not yet have processing tools. This study is a contribution to the automatic processing of the Hausa language. We used existing techniques for other languages and adapted them to the special case of the Hausa language. The corrector designed operates essentially on Mijinguini’s dictionary and characteristics of the Hausa alphabet. After a brief review on spell checking and spell correcting techniques and the state of art in the Hausa language processing, we opted for the data structures trie and hash table to represent the dictionary. The edit distance and the specificities of the Hausa alphabet have been used to detect and correct spelling errors. The implementation of the spell corrector has been made on a special editor developed for that purpose (LyTexEditor) but also as an extension (add-on) for OpenOffice.org. A comparison was made on the performance of the two data structures used.
Design of A Spell Corrector For Hausa LanguageWaqas Tariq
In this article, a spell corrector has been designed for the Hausa language which is the second most spoken language in Africa and do not yet have processing tools. This study is a contribution to the automatic processing of the Hausa language. We used existing techniques for other languages and adapted them to the special case of the Hausa language. The corrector designed operates essentially on Mijinguini’s dictionary and characteristics of the Hausa alphabet. After a brief review on spell checking and spell correcting techniques and the state of art in the Hausa language processing, we opted for the data structures trie and hash table to represent the dictionary. The edit distance and the specificities of the Hausa alphabet have been used to detect and correct spelling errors. The implementation of the spell corrector has been made on a special editor developed for that purpose (LyTexEditor) but also as an extension (add-on) for OpenOffice.org. A comparison was made on the performance of the two data structures used.
Power Point about uses and form of Presnt Perfect Tense with brief explanations and examples included. Most examples are made from personal experiences. Some examples will need updates.
Learn about the Present Perfect, how to structure it, when to use it, passive and active forms, differences between unspecific and specific time/dates etc.
Philippine Church's Architecture has been influenced by different periods of colonization. This presentation will show you the progress and difference in design and style of many churches in the Philippines from pre-spanish to modern period.
3. I have seen that movie many times.
• I have seen that movie many times.
We have finished the job.
• We have finished the job.
She has been in her room since this morning.
He has done his homework.
• She has been in her room since this morning.
• He has done his homework.
•
8. When exactly???
I have seen that movie already.
She has left for California.
They have not eaten their dinner yet.
9. How Do I Actually Use the Present Perfect?
TOPIC 1: Experience
•I have been to France.
TOPIC 2: Accomplishments
•Our son has learned how to read.
10. Present Perfect Usage
2. To indicate something which started in the
past and continues until now.
I have taught English for ten years.
11. How Do I Actually Use the Present Perfect?
TOPIC : Change Over Time
You have grown since the last time I saw you.
12. Notes:
•When speaking about a specific time, use past
tense.
A: I have seen that movie already.
B: Oh really? When did you see it?
A: I saw it last week with Bob.
•Sometimes, but not always, present perfect
continuous can be used instead of present perfect.
I have lived there for ten years.
I have been living there for ten years.
13. Find the mistake.
•Did you finish that job yet? I haven't seen the
finished product.
•Tom worked in our company for 10 years. He
started in 2000.
•I have gone to San Francisco in 1993. I've been
there a total of three times.